CN110713330A

CN110713330A - Municipal administration mud regeneration resourceful treatment device

Info

Publication number: CN110713330A
Application number: CN201911047029.4A
Authority: CN
Inventors: 林玉鹏; 张健君; 肖才林; 吕英俊; 杨淑芳; 张卿; 闫智涛; 吴春雷; 陈立春
Original assignee: Shenzhen Municipal Design and Research Institute Co Ltd
Current assignee: Shenzhen Municipal Design and Research Institute Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-01-21

Abstract

The invention discloses a municipal sludge regeneration and recycling treatment device, which comprises a device shell, a sludge dewatering component and a pyrolysis component, wherein the bottom of the device shell is provided with a base, the device shell is provided with a sludge pump and a water outlet, the sludge dewatering component comprises an extrusion plate, a connecting rod and a power motor, the device shell is internally provided with a guide plate and a sliding rod, the extrusion plate is arranged on the sliding rod, the power motor provides power for the extrusion plate, the pyrolysis component comprises a pyrolysis cylinder, a sludge stirring component and a deodorizer, the pyrolysis cylinder is arranged in the device shell and positioned at the lower end of the extrusion plate, the sludge stirring component comprises a rotating motor and an auger, the auger is arranged in the pyrolysis cylinder, the power motor provides power for the auger, and the deodorizer is communicated with the pyrolysis cylinder and used for treating volatile gas; the invention has reasonable structural design, can carry out thorough and effective resource treatment on the municipal sludge, has lower operation and maintenance cost and is suitable for large-scale popularization.

Description

Municipal administration mud regeneration resourceful treatment device

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a municipal sludge regeneration and recycling treatment device.

Background

The municipal sludge refers to sludge blocks or sludge cakes discharged by a municipal sewage treatment plant after concentration and dehydration, and the sludge blocks or sludge cakes contain rich organic matters, N, P, K and other nutrient elements, so that if the sludge blocks or sludge cakes are improperly disposed, not only is environmental pollution easily caused, but also resources are wasted; the current treatment for municipal sludge generally comprises the following four types: sludge landfill, sludge incineration, sludge farming and marine dumping. The sludge incineration refers to that organic matters in the sludge are used in an incinerator to perform combustion reaction under the condition of certain temperature and sufficient gas phase oxygen, but the content of the organic matters in the sludge is low, and the combustion process is difficult to continuously provide sufficient heat energy, so the sludge incineration is only the sludge incineration, and the organic matter energy in the sludge is not well utilized.

On the other hand, the sludge is preferably dehydrated before the sludge incineration treatment, the traditional sludge dehydration mode is mechanical filter pressing, the moisture in the sludge gap is difficult to completely remove, and the heat input during the sludge incineration is increased; the direct discharge of harmful gases generated in the sludge combustion process easily causes secondary pollution.

Disclosure of Invention

Aiming at the technical problems, the invention provides the municipal sludge regeneration and resource treatment device which is reasonable in structural design, low in equipment operation cost and high in treatment efficiency.

The technical scheme of the invention is as follows: a municipal sludge regeneration and resource treatment device comprises a device shell, a sludge dewatering component and a pyrolysis component; a dehydration cavity and a pyrolysis cavity are sequentially arranged in a device shell from top to bottom, a base is arranged at the bottom of the device shell, a sludge pump is arranged on the device shell, the dehydration cavity is connected with the pyrolysis cavity through a sludge guide hopper, a movable inserting plate is arranged at the joint of the dehydration cavity and the sludge guide hopper, a water outlet is arranged at the side edge of the dehydration cavity close to the lower position, and the dehydration cavity is connected with the sludge pump through a guide pipe; the sludge dewatering component is arranged in a dewatering cavity and comprises an extrusion plate, a connecting rod and a power motor, wherein two guide plates and a sliding rod are arranged in the dewatering cavity in parallel one above the other, a sliding groove is formed in one side, opposite to the upper guide plate and the lower guide plate, of the upper guide plate and the lower guide plate, the sliding rod is positioned between the upper guide plate and the lower guide plate, the extrusion plate is sleeved on the sliding rod through a sliding sleeve, two ends of the extrusion plate are positioned in the upper sliding groove and the lower sliding groove and can horizontally move along the sliding groove, the power motor is connected with the sliding sleeve through the connecting rod, and the power motor can enable; the pyrolysis component comprises a pyrolysis cylinder, a sludge stirring component and a deodorizer, the pyrolysis cylinder comprises a heating cylinder and an inner cylinder, the inner cylinder is sleeved inside the heating cylinder, the inner cylinder is communicated with a sludge guide hopper, a heating cavity is formed between the heating cylinder and the inner cylinder, a heating medium inlet and a heating medium outlet are arranged on the heating cavity, a feed opening is arranged on the heating cylinder, a movable plate is arranged on the feed opening, the sludge stirring component comprises a rotating motor and a packing auger, the packing auger comprises a first packing auger and a second packing auger, a first hinge hole and the second packing auger are movably clamped inside the inner cylinder, the second packing auger is positioned inside the first hinge hole, a stirring inclined plate is circumferentially arranged on the first hinge hole, a plurality of stirring plates are uniformly arranged on the second packing auger, the stirring plates are semicircular, the plurality of stirring plates are all obliquely arranged, the rotating motor comprises a first motor and a second motor, the first motor and the second motor respectively provide power for the first packing auger and the second, the deodorizer is communicated with the inner cylinder and is used for treating the gas volatilized by the inner cylinder. The first motor, the second motor and the power motor are all powered by an external power supply.

Furthermore, a sludge pretreatment frame is arranged at the upper end of the dehydration cavity, a sludge pump is communicated with the dehydration cavity after being connected with the sludge pretreatment frame, a cleaning port is arranged on the device shell, and a cover plate is hinged on the cleaning port; through setting up the great debris such as stone, dry branches that the mud preliminary treatment frame can effectively filter mix in the municipal sludge, improve the subsequent processing effect, set up clearance mouth and apron and be convenient for clear up the inside sedimentary debris of mud preliminary treatment frame.

Furthermore, a filter box is arranged between the dehydration cavity and the water outlet, so that the water in the municipal sludge can be conveniently discharged under the pressurization action of the extrusion plate, and the fine sludge is prevented from being discharged from the water outlet along with the water.

Furthermore, two extrusion plates are arranged, guide rods are vertically arranged on the lower side of the middle part of each slide rod, the two extrusion plates are positioned on two sides of each slide rod, sleeves are sleeved outside the guide rods and are respectively hinged with the sliding sleeves through supporting rods, a cam is arranged on an output shaft of the power motor, and the cam is connected with the outer sides of the sleeves through connecting rods; the cam is driven to rotate through the power motor, so that the connecting rod moves up and down, the supporting rod pushes the extrusion plate to move left and right in the sliding groove, sludge is extruded continuously, and moisture in the municipal sludge is discharged quickly.

Further, the cover is equipped with the mud shearing box on the slide bar, and the mud shearing box is located one side that the stripper plate is close to device shell inner wall, and the mud shearing box is equipped with reset spring with the slide bar junction cover, is provided with the toper piece on the mud shearing box, is provided with the shear slice on the toper piece, through setting up the mud shearing box for the stripper plate removes the in-process, and mud is constantly cuted to toper piece and shear slice, and the moisture that will wrap up in the mud clearance thoroughly releases.

Further, the rotating speeds of the first motor and the second motor are the same, and the rotating directions are opposite; when the first auger rotates, the sludge is continuously stirred, when the sludge reaches the top point of the inner barrel, the sludge falls onto the second auger under the action of self gravity, is cut and overturned by the second auger again, and the process is repeated, so that organic impurities in the sludge are rapidly and thoroughly decomposed.

Furthermore, a sludge incineration box is arranged at the lower end of the pyrolysis cavity, the sludge incineration box is communicated with the feed opening, an air inlet and a discharge opening are formed in the sludge incineration box, a heat collecting device is arranged on a device shell, and the heat collecting device is connected with the sludge incineration box; the sludge incineration box and the heat collecting device are arranged, so that heat generated during sludge combustion can be collected and utilized, reasonable utilization of resources is facilitated, and resource waste is reduced.

The working principle of the invention is as follows: when the sludge dewatering device is used, the sludge pump, the power motor, the motor I and the motor II are respectively connected with an external power supply, the sludge pump is started, external sludge is introduced into the dewatering cavity through the sludge pump, the sludge is firstly filtered by the sludge pretreatment frame to remove larger particle impurities in the sludge, and then the sludge is introduced into the dewatering cavity; starting a power motor, driving a cam to rotate through the power motor, enabling a connecting rod to move up and down, further enabling a supporting rod to push an extrusion plate to move left and right in a sliding groove to extrude sludge, and enabling a conical block and a shearing sheet to shear the sludge continuously to release moisture wrapped in a sludge gap thoroughly; after the sludge dewatering is accomplished, remove movable picture peg, mud gets into in the inner tube through leading mud fill, reclosing movable picture peg, be connected heating medium import and heating medium export with external heating medium respectively, start motor one and motor two constantly stir cutting mud, the volatile gas of being heated in the mud is outside the eduction gear after the deodorizer is handled, the mud pyrolysis is accomplished the back, remove the fly leaf, mud gets into the sludge incineration box, burn box to mud through the air inlet and let in oxygen, the heat that the mud burning produced gets into and collects in the heat collection device, after the mud fully burns, discharge through the discharge port.

Compared with the prior art, the invention has the beneficial effects that: the integrated device has reasonable structural design and low equipment operation and maintenance cost, and can thoroughly treat municipal sludge, thereby reducing the waste of resources; by arranging the extrusion plate and the sludge shearing box, water in sludge can be effectively and thoroughly extruded out, and heat required by later-stage sludge pyrolysis is reduced; gas released in the sludge pyrolysis process is treated and discharged by the deodorizer, so that the environmental pollution is reduced; the sludge after pyrolysis is subjected to incineration treatment, harmful substances in the sludge are thoroughly removed, meanwhile, heat in the incineration process is collected and utilized, the collected heat can be used for self-heating of equipment, and energy input in the sludge treatment process is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the present invention;

FIG. 3 is a schematic view of the structure of the extrusion plate of the present invention in an extruded state;

FIG. 4 is a schematic view of the connection of the squeeze plate and the slide bar of the present invention;

FIG. 5 is a schematic view of the internal structure of the inner cartridge of the present invention;

wherein, 1-device shell, 10-dehydration cavity, 100-water outlet, 101-sludge pretreatment frame, 102-cleaning port, 103-cover plate, 104-filter box, 11-pyrolysis cavity, 12-base, 13-sludge pump, 14-sludge guide hopper, 15-movable insertion plate, 2-sludge dehydration component, 20-extrusion plate, 200-sliding sleeve, 21-connecting rod, 22-power motor, 220-cam, 23-guide plate, 230-sliding groove, 24-sliding rod, 240-guide rod, 241-support rod, 25-sludge shearing box, 250-reset spring, shear-conical block, 252-slice, 3-pyrolysis component, 30-pyrolysis cylinder, 300-heating cylinder, 3000-feed opening, 3001-movable plate, 301-inner cylinder, 31-sludge stirring component, 310-rotating motor, 3100-motor I, 3101-motor II, 311-auger, 3110-first auger, 3111-second auger, 3112-stirring inclined plate, 3113-stirring plate, 32-deodorizer, 330-heating medium inlet, 331-heating medium outlet, 34-sludge incineration box, 340-air inlet, 341-discharge outlet and 4-heat collecting device.

Detailed Description

Example (b): the municipal sludge regeneration and resource treatment device shown in figures 1 and 3 comprises a device shell 1, a sludge dewatering component 2 and a pyrolysis component 3; a dehydration cavity 10 and a pyrolysis cavity 11 are sequentially arranged in a device shell 1 from top to bottom, a base 12 is arranged at the bottom of the device shell 1, a sludge pump 13 is arranged on the device shell 1, the dehydration cavity 10 is connected with the pyrolysis cavity 11 through a sludge guide hopper 14, a movable inserting plate 15 is arranged at the joint of the dehydration cavity 10 and the sludge guide hopper 14, a water outlet 100 is arranged at the position close to the lower side of the dehydration cavity 10, and the dehydration cavity 10 is connected with the sludge pump 13 through a guide pipe; the upper end of the dehydration cavity 10 is provided with a sludge pretreatment frame 101, a sludge pump 13 is communicated with the dehydration cavity 10 after being connected with the sludge pretreatment frame 101, a cleaning port 102 is arranged on the device shell 1, and a cover plate 103 is hinged on the cleaning port 102; the sludge pretreatment frame 101 can effectively filter out large sundries such as stones, deadwood and the like mixed in municipal sludge, so that the subsequent treatment effect is improved, and the cleaning port 102 and the cover plate 103 are arranged to facilitate cleaning of sundries deposited in the sludge pretreatment frame 101; further, a filter box 104 is arranged between the dehydration cavity 10 and the water outlet 100, the filter box 104 is arranged to facilitate the discharge of the water in the municipal sludge under the extrusion action of the extrusion plate 20, and simultaneously, the discharge of the fine sludge from the water outlet 100 along with the water is avoided;

as shown in fig. 1 and 4, the sludge dewatering component 2 is arranged in the dewatering cavity 10, the sludge dewatering component 2 includes two extrusion plates 20, a connecting rod 21 and a power motor 22, two guide plates 23 and a sliding rod 24 are arranged in parallel one above the other in the dewatering cavity 10, a sliding groove 230 is arranged on one side opposite to the two upper and lower guide plates 23, the sliding rod 24 is positioned between the two upper and lower guide plates 23, two extrusion plates 20 are arranged, a guide rod 240 is vertically arranged on the lower side of the middle part of the sliding rod 24, the two extrusion plates 20 are positioned on two sides of the sliding rod 24, the two extrusion plates 20 are sleeved on the sliding rod 24 through a sliding sleeve 200, two ends of the two extrusion plates 20 are respectively positioned in the upper sliding groove 230 and the lower sliding groove 230 and can horizontally move along the sliding grooves 230, a sleeve is sleeved outside the guide rod 240 and is hinged with the sliding sleeve 200 through a support rod 241, a cam 220 is arranged on an output shaft of the power motor 22, and the cam 220 is connected with the outer side of the sleeve through a connecting rod 21; the cam 220 is driven to rotate by the power motor 22, so that the connecting rod 21 moves up and down, the supporting rod 241 pushes the extrusion plate 20 to move left and right in the sliding groove 230, sludge is extruded continuously, and moisture in municipal sludge is discharged quickly; the sliding rod 24 is sleeved with a sludge shearing box 25, the sludge shearing box 25 is positioned on one side of the extrusion plate 20 close to the inner wall of the device shell 1, a reset spring 250 is sleeved at the joint of the sludge shearing box 25 and the sliding rod 24, a conical block 251 is arranged on the sludge shearing box 25, a shearing sheet 252 is arranged on the conical block 251, and by arranging the sludge shearing box 25, the conical block 251 and the shearing sheet 252 continuously shear sludge in the moving process of the extrusion plate 20, so that moisture wrapped in a sludge gap is thoroughly released;

as shown in fig. 1, 2 and 5, the pyrolysis assembly 3 includes a pyrolysis cylinder 30, a sludge stirring member 31 and a deodorizer 32, the pyrolysis cylinder 30 includes a heating cylinder 300 and an inner cylinder 301, the inner cylinder 301 is sleeved inside the heating cylinder 300, the inner cylinder 301 is communicated with the sludge guide hopper 14, a heating cavity is formed between the heating cylinder 300 and the inner cylinder 301, the heating cavity is provided with a heating medium inlet 330 and a heating medium outlet 331, the heating cylinder 300 is provided with a feed opening 3000, the feed opening 3000 is provided with a movable plate 3001, the sludge stirring member 31 includes a rotating motor 310 and an auger 311, the auger 311 includes a first auger 3110 and a second auger 3111, the first hinge 3110 and the second auger 3111 are movably clamped inside the inner cylinder 311301, the second auger 3111 is located inside the first hinge 3110, the first hinge 3110 is provided with a circumferential stirring inclined plate 3112, the second auger 3111 is uniformly provided with a plurality of disturbance plates 3113, the disturbance plates 3113 are semi-circular, the plurality of disturbance plates 3113 are obliquely arranged, the rotating motor 310 comprises a first motor 3100 and a second motor 3101, the first motor 3100 and the second motor 3101 respectively provide power for the first auger 3110 and the second auger 3111, and the first auger 3110 and the second auger 3111 are arranged, so that the dewatered municipal sludge is continuously stirred and cut, and organic impurities mixed in the sludge can be quickly discharged when the sludge is heated; the deodorizer 32 is communicated with the inner cylinder 301, and the deodorizer 32 is used for treating the gas volatilized by the inner cylinder 301; the rotation speeds of the first motor 3100 and the second motor 3101 are the same, and the rotation directions are opposite; when the first auger 3110 rotates, the sludge is continuously stirred, when the sludge reaches the top of the inner cylinder 301, the sludge falls onto the second auger 3111 under the action of self gravity, and is cut and overturned by the second auger 3111 again, so that the organic impurities in the sludge are rapidly and thoroughly decomposed; the rotation speeds of the first motor 3100 and the second motor 3101 are the same, and the rotation directions are opposite; when the first auger 3110 rotates, the sludge is continuously stirred, when the sludge reaches the top of the inner cylinder 301, the sludge falls onto the second auger 3111 under the action of self gravity, and is cut and overturned by the second auger 3111 again, so that the organic impurities in the sludge are rapidly and thoroughly decomposed; the lower end of the pyrolysis cavity 11 is provided with a sludge incineration box 34, the sludge incineration box 34 is communicated with the feed opening 3000, the sludge incineration box 33 is provided with an air inlet 340 and a discharge opening 341, the device shell 1 is provided with a heat collecting device 4, and the heat collecting device 4 is connected with the sludge incineration box 34; the sludge incineration box 34 and the heat collecting device 4 are arranged, so that heat generated during sludge combustion can be collected and utilized conveniently, resources can be reasonably utilized, and resource waste is reduced; the first motor 3100, the second motor 3101 and the power motor 22 are all powered by an external power supply.

When the sludge dewatering device is used, the sludge pump 13, the power motor 22, the motor I3100 and the motor II 3101 are respectively connected with an external power supply, the sludge pump 13 is started, external sludge is introduced into the dewatering cavity 10 through the sludge pump 13, the sludge is firstly filtered by the sludge pretreatment frame 101, larger particle impurities in the sludge are removed, and then the sludge is introduced into the dewatering cavity 10; the power motor 22 is started, the cam 220 is driven to rotate through the power motor 22, the connecting rod 21 is enabled to move up and down, the supporting rod 241 pushes the extrusion plate 20 to move left and right in the sliding groove 230 to extrude sludge, meanwhile, the conical block 251 and the shearing sheet 252 continuously shear the sludge, and moisture wrapped in a sludge gap is thoroughly released; after the sludge is dewatered, the movable inserting plate 15 is removed, the sludge enters the inner barrel 301 through the sludge guide hopper 14, the movable inserting plate 15 is closed again, the heating medium inlet 330 and the heating medium outlet 331 are respectively connected with an external heating medium, the first motor 3100 and the second motor 3101 are started to continuously stir and cut the sludge, the gas volatilized by heating in the sludge is discharged out of the device after being treated by the deodorizer 32, after the sludge is pyrolyzed, the movable plate 3001 is removed, the sludge enters the sludge incineration box 34, oxygen is introduced into the sludge incineration box 34 through the air inlet 340, the heat generated by the sludge combustion enters the heat collecting device 4 to be collected, and after the sludge is sufficiently combusted, the sludge is discharged through the discharge port 341.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A municipal sludge regeneration and resource treatment device is characterized by comprising a device shell (1), a sludge dewatering component (2) and a pyrolysis component (3); a dehydration cavity (10) and a pyrolysis cavity (11) are sequentially arranged in the device shell (1) from top to bottom, a base (12) is arranged at the bottom of the device shell (1), a sludge pump (13) is arranged on the device shell (1), the dehydration cavity (10) is connected with the pyrolysis cavity (11) through a sludge guide hopper (14), a movable inserting plate (15) is arranged at the joint of the dehydration cavity (10) and the sludge guide hopper (14), a water outlet (100) is arranged at the position, close to the lower part, of the side edge of the dehydration cavity (10), and the dehydration cavity (10) is connected with the sludge pump (13) through a guide pipe; the sludge dewatering component (2) is arranged in the dewatering cavity (10), the sludge dewatering component (2) comprises an extrusion plate (20), a connecting rod (21) and a power motor (22), two guide plates (23) and a slide rod (24) are arranged in the dewatering cavity (10) in parallel from top to bottom, a slide groove (230) is arranged on one side of the upper guide plate and the lower guide plate (23) opposite to each other, the sliding rod (24) is positioned between the upper guide plate and the lower guide plate (23), the extrusion plate (20) is sleeved on the sliding rod (24) through a sliding sleeve (200), and both ends of the pressing plate (20) are positioned in the upper and lower sliding grooves (230) and can horizontally move along the sliding grooves (230), the power motor (22) is connected with the sliding sleeve (200) through a connecting rod (21), and the power motor (22) can enable the connecting rod (21) to push the extrusion plate (20) to move left and right in the sliding groove (230); pyrolysis subassembly (3) are including pyrolysis section of thick bamboo (30), mud stirring component (31) and deodorizer (32), pyrolysis section of thick bamboo (30) are including cartridge heater (300) and inner tube (301), inner tube (301) cover is established inside cartridge heater (300), and inner tube (301) and mud bucket (14) switch on, form the heating chamber between cartridge heater (300) and inner tube (301), be provided with heating medium import (330) and heating medium export (331) on the heating chamber, be provided with feed opening (3000) on cartridge heater (300), be provided with fly leaf (3001) on feed opening (3000), mud stirring component (31) is including rotating motor (310) and auger (311), auger (311) are including first auger 3110 and second auger (3111), first reamed hole (3110) and the equal activity joint of second auger (3111) are inside inner tube (301), just second auger (3111) is located inside first hinge hole (3110), and circumference is provided with stirring swash plate (3112) on first hinge hole (3110), evenly is provided with a plurality of disturbance boards (3113) on second auger (3111), disturbance board (3113) are the semicircle form, and a plurality of disturbance boards (3113) all incline the setting, rotation motor (310) include motor one (3100) and motor two (3101), motor one (3100) and motor two (3101) are first auger (3110), second auger (3111) respectively and provide power, deodorizer (32) and inner tube (301) intercommunication, deodorizer (32) are used for handling inner tube (301) volatile gas.

2. The municipal sludge regeneration and resource treatment device according to claim 1, wherein a sludge pretreatment frame (101) is arranged at the upper end of the dehydration chamber (10), the sludge pump (13) is connected with the sludge pretreatment frame (101) and then communicated with the dehydration chamber (10), a cleaning port (102) is arranged on the device housing (1), and a cover plate (103) is hinged on the cleaning port (102).

3. The municipal sludge regeneration and resource treatment device according to claim 1, wherein a filter box (104) is arranged between the dehydration chamber (10) and the water outlet (100).

4. The municipal sludge regeneration and resource treatment device according to claim 1, wherein two extrusion plates (20) are provided, guide rods (240) are vertically arranged on the lower side of the middle of the sliding rod (24), the two extrusion plates (20) are positioned on two sides of the sliding rod (24), sleeves are sleeved outside the guide rods (240), the sleeves are hinged to the sliding sleeve (200) through supporting rods (241), a cam (220) is arranged on an output shaft of the power motor (22), and the cam (220) is connected with the outer side of each sleeve through a connecting rod (21).

5. The municipal sludge regeneration and resource treatment device according to claim 1, wherein the slide bar (24) is sleeved with a sludge shearing box (25), the sludge shearing box (25) is positioned on one side of the extrusion plate (20) close to the inner wall of the device shell (1), the joint of the sludge shearing box (25) and the slide bar (24) is sleeved with a return spring (250), the sludge shearing box (25) is provided with a conical block (251), and the conical block (251) is provided with a shearing sheet (252).

6. The municipal sludge regeneration and resource treatment device according to claim 1, wherein the first motor (3100) and the second motor (3101) rotate at the same speed and in opposite directions.

7. The municipal sludge regeneration and resource treatment device according to claim 1, wherein a filter cassette (104) is disposed between the drain outlet (100) and the dehydration chamber (10).