CN201214278Y - Mortar pre-stirring type continuous cement concrete stirring station - Google Patents
Mortar pre-stirring type continuous cement concrete stirring station Download PDFInfo
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- CN201214278Y CN201214278Y CNU200720179078XU CN200720179078U CN201214278Y CN 201214278 Y CN201214278 Y CN 201214278Y CN U200720179078X U CNU200720179078X U CN U200720179078XU CN 200720179078 U CN200720179078 U CN 200720179078U CN 201214278 Y CN201214278 Y CN 201214278Y
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Abstract
The utility model relates to a sand-pulp pre-mixing continuous cement concrete mixing plant, which comprises a plurality of continuous stone proportioning machines with a weighing sensor, a plurality of continuous sand proportioning machines with a weighing sensor, a sand-pulp pre-mixer, a cement continuous proportioning machine, a powder continuous proportioning machine, a transferring hopper, a lifting conveying belt and a secondary mixer. With the mixing plant, the cement, the powder and the sand can be adequately and homogenously mixed, and the sand particles can be adequately wrapped by the cement; after the semi-dry sand pulp is formed, the cement and the powder can be adequately precipitated and bonded on the sand during the conveying process about 10 to 15 seconds of a horizontal conveying belt, the hopper and the lifting conveying belt; when the sand pulp is mixed with the stone, the sand pulp can heavily impact, fractionate and bond the surface of the stone, so that the stone is adequately wrapped by the sand pulp, and the gap between the stones is adequately and tightly filled by the sand pulp. Since the water consumption is reduced, the possibility for producing the gap is greatly reduced, thereby playing a decisive effect on improving the indexes of the cement concrete such as the strength, the durance and the like.
Description
Technical field:
The utility model is the pre-agitating type continuous concrete of an a kind of mortar mixing plant, belongs to the innovative technology of continuous concrete mixing plant.
Background technology:
Traditional clearance-type mixing plant is continued to use traditional stirring technique always: be about to cement, aggregate, additive, water etc. and accurately together add the mixer stirring after the metering respectively by certain ratio requirement, stir certain hour, its material is evenly mixed, and carry out hydration process and form the cement concrete finished product, the shortcoming that this kind mixing plant exists is that production efficiency is low, the energy consumption height, the workability of cement concrete, intensity, durability or the like performance level is lower.Phase at the end of the eighties in last century, China brings into use continuous mixer, in heavy construction, use large continuous mixing plant (building) equipment especially, the production efficiency that makes cement concrete stir improves greatly, but, the workability of its energy consumption level and cement concrete, intensity, durability or the like performance is desirable not enough, is difficult to satisfy instructions for use strict more in modern project, the key project.
The utility model content:
The purpose of this utility model is to consider the problems referred to above and a kind of production efficiency that concrete stirs that can not only effectively improve is provided, cut down the consumption of energy, and under conditions such as identical raw material, proportioning, can improve the pre-agitating type continuous concrete of the mortar mixing plant of workability, intensity, durability or the like the performance of cement concrete greatly.The utility model design is ingenious, simple in structure, energy-efficient.
The technical solution of the utility model is: include the continous way building stones proportioning machine that several are provided with LOAD CELLS, several are provided with the continous way sand material proportioning machine of LOAD CELLS, the pre-mixer of mortar, cement continous way proportioning machine, powder continous way proportioning machine, the switching bucket, promote belt conveyor, the secondary mixer, wherein continous way building stones proportioning machine bottom is provided with by ratio requirement with certain speed, consumption accurately, deliver to the building stones proportioning belt on the horizontal feed belt continuously equably, continous way sand material proportioning machine bottom is provided with sand material proportioning belt, the horizontal feed belt is laid on the below of pre-mixer outlet, pre-mixer is arranged on the below of the discharge end of sand material proportioning belt, cement continous way proportioning machine top is provided with several cement storage bins, powder continous way proportioning machine top is provided with several powder storage bins, the below of cement continous way proportioning machine and powder continous way proportioning machine is provided with cement, powder is delivered to the conveying device that stirs in the pre-mixer, the top of pre-mixer also is provided with little water tank, the switching bucket is arranged on the below of the port of export of horizontal feed belt, the feed end that promotes belt conveyor is arranged on the outlet below of switching bucket, the discharge end that promotes belt conveyor is arranged on the top of secondary mixer, and the top of secondary mixer also is provided with large water tank.
Above-mentioned conveying device is the conveyor screw device that gathers materials.
The top of above-mentioned secondary mixer also is provided with the additive case.
Above-mentioned additive case is provided with LOAD CELLS.
Above-mentioned additive case adds batch meter by first water pump with additive, and batch meter adds the secondary mixer by second water pump with additive.
Above-mentioned little water tank is taken into account flow regulating and controlling valve by water pump, flow water is added pre-mixer.
Above-mentioned flow is counted turbine flowmeter.
The pre-mixer of above-mentioned mortar is single horizontal axis continuous flow pugmill, and the secondary mixer is single horizontal axis or dual horizontal axle continuous mixer.
Above-mentioned cement continous way proportioning machine and powder continous way proportioning machine include hopper and gage probe, and its hopper lower part outlet place is provided with by driven by motor and according to the size of motor speed and regulates what rotation plate washer of its discharging quantity.
Above-mentioned large water tank and little water tank can be merged into a water tank.
The utility model is owing to adopt the structure that includes pre-mixer of mortar and secondary mixer, the pre-mortar that stirs can make cement, powder mixes with the sand material fully and is even, sand grains can fully be wrapped up by cement, after forming half-dried mortar, at the horizontal feed belt, make cement in hopper and 10～15 seconds the course of conveying of lifting belt conveyor, powder has fair time deposition of dividing and is bonded on the sand material, mortar is to the impact on building stones surface when mortar and building stones mix, friction, bonding meeting is more strong and powerful, building stones are wrapped up more fully by mortar, more complete closely between the building stones by slurry placement, thereby significantly reduce the possibility that produces the slit, thereby to improving workability and intensity because water consumption reduces, durability or the like index has played conclusive effect.Therefore, the utlity model has following five big characteristics:
1) quality height such as the utility model cement concrete workability of producing, intensity, durability;
2) the utility model energy savings, remarkable in economical benefits;
3) the utlity model has quick, production in enormous quantities ability, service efficiency height;
4) the used steel of the utility model device fabrication are few, can reduce equipment steel construction cost;
5) the utility model occupation area of equipment is few, and equipment handover charge is low.
The utility model is that a kind of design is ingenious, function admirable, the pre-agitating type continuous concrete of convenient and practical mortar mixing plant.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
Embodiment:
Structural representation of the present utility model as shown in Figure 1, include the continous way building stones proportioning machine 1 that several are provided with LOAD CELLS, several are provided with the continous way sand material proportioning machine 2 of LOAD CELLS, the pre-mixer 21 of mortar, cement continous way proportioning machine 19, powder continous way proportioning machine 17, switching bucket 20, promote belt conveyor 16, secondary mixer 15, wherein continous way building stones proportioning machine 1 bottom is provided with by ratio requirement with certain speed, consumption accurately, deliver to the building stones proportioning belt 24 on the horizontal feed belt 22 continuously equably, continous way sand material proportioning machine 2 bottoms are provided with sand material proportioning belt 23, horizontal feed belt 22 is laid on the below of pre-mixer 21 outlets, pre-mixer 21 is arranged on the below of the discharge end of sand material proportioning belt 23, cement continous way proportioning machine 19 tops are provided with several cement storage bins 7, powder continous way proportioning machine 17 tops are provided with several powder storage bins 8, the below of cement continous way proportioning machine 19 and powder continous way proportioning machine 17 is provided with cement, powder is delivered to 21 li conveying devices that stir 18 of pre-mixer, the top of pre-mixer 21 also is provided with little water tank 6, switching bucket 20 is arranged on the below of the port of export of horizontal feed belt 22, the feed end that promotes belt conveyor 16 is arranged on the outlet below of switching bucket 20, the discharge end that promotes belt conveyor 16 is arranged on the top of secondary mixer 15, and the top of secondary mixer 15 also is provided with large water tank 14.Secondary mixer 15 is a master mixer, and the power of the pre-mixer 21 of mortar only has below 1/3rd of secondary mixer 15.
In the present embodiment, above-mentioned conveying device 18 is the conveyor screw device that gathers materials.
For further improving the particular characteristic and the quality requirement of cement concrete, the top of above-mentioned secondary mixer 15 also is provided with additive case 9.
Above-mentioned little water tank 6 adds pre-mixer 21 by water pump 5, flowmeter 4 and flow regulating and controlling valve 3 with water.In the present embodiment, above-mentioned flowmeter 4 is a turbine flowmeter.
In the present embodiment, above-mentioned additive case 9 is provided with LOAD CELLS, and additive case 9 adds batch meter 10 by first water pump 11 with additive, and batch meter 10 adds secondary mixer 15 by second water pump 12 with additive.Automatic control system adopts decrement method calculated flow rate, controls consumption in its input mixer by predefined ratio requirement by water pump and adjusting control valve.
In the present embodiment, the pre-mixer 21 of above-mentioned mortar is single horizontal axis continuous flow pugmill, and secondary mixer 15 is single horizontal axis or dual horizontal axle continuous mixer.
In the present embodiment, above-mentioned cement continous way proportioning machine 19 and powder continous way proportioning machine 17 include hopper and gage probe, and its hopper lower part outlet place is provided with by driven by motor and according to the size of motor speed and regulates what rotation plate washer of its discharging quantity.When motor speed increases, cement that plate washer is sent or powder quantity just increase, otherwise reduce, computer in the automatic control system, according to the ratio requirement of setting, calculate the cement in the hopper, the weight change of powder with the decrement method, the self-regulation motor rotating speed, accurate, even, stable with the quantity delivered that guarantees its cement and powder.
Operation principle of the present utility model is as follows: once the building stones of some tons (as ten tons) can be put in the hopper of continous way building stones proportioning machine with loading machine etc., and should often be kept having in the hopper enough building stones.Hopper is provided with LOAD CELLS, accurately measure the aggregate expense by automatic control system with the decrement method, the proportioning belt 24 that building stones are provided with by its hopper bottom continuously uniformly by ratio requirement with certain speed accurately consumption deliver on the horizontal feed belt 22, this belt just is laid on the below of pre-mixer 21 outlets, therefore just accepting the half-dried mortar that pre-mixer stirs when horizontal feed belt 22 will carry the building stones of even lay on it by pre-mixer below, half-dried mortar is laid on the building stones uniformly.
Continous way sand material proportioning machine 2 is consistent with building stones proportioning machine 1 operation principle and structure, hopper is provided with LOAD CELLS, keep having enough sand material standby in the hopper of continous way sand material proportioning machine 2 with methods such as loading machines always, the proportioning belt 23 that the sand material is provided with by its underpart continuously uniformly by ratio requirement with certain speed accurately consumption deliver in the pre-mixer.
Cement, powder continous way proportioning machine 19 are consistent with structure with 17 both operation principles, and cement, powder are delivered to 21 li in pre-mixer by the level conveyor screw device 18 that gathers materials.
The water of little water tank 6 carries out accurate measurement by flowmeter, and automatic control system is adjusted to predefined water consumption automatically by water pump and control valve.The water consumption of pre-mixer is less, through 5～10 seconds quick stirring, makes cement, sand, powder and water form the half-dry type mortar, and this mortar can not flow, and does not have slump yet.After mortar forms, drop on the horizontal feed belt of laying under it 22 from the outlet of pre-mixer 21, make building stones uniform on the belt 22 half-dried mortar of layer overlay again, the important role of this process (comprise and stir mortar), it makes cement begin hydration process as early as possible.Cement, powder, sand material are evenly mixed with water, make cement well wrap up sand grains.On horizontal feed belt 22, building stones and mortar are by the lay of evenly making thinner; Play the effect of mortar and uniformization of building stones, being equivalent to mortar and building stones had carried out again once stirring before entering the secondary mixer, this kind of evidence technical process reduces the mixer power consumption and has further improved mixing evenness, has reached dual purpose energy-conservation and the raising mixing quality.
Subsequently, the horizontal feed belt is delivered to switching bucket 20 with mortar, building stones, utilization lifting belt conveyor 16 adds 15 li in arrival secondary mixers then, remains the indispensable time of mortar cement hydration process with 10～15 seconds this section period approximately through level and lifting belt conveyor arrival secondary mixer inlet.
Mortar, aggregate, additive and water mixing time in the secondary mixer is about 10 seconds, has entered pre-mixer from cement, powder, sand material fraction water, is total to about 30 seconds time up to the outlet of secondary mixer.Evidence: under the identical situation of external conditions such as raw material, when the pre-agitating type continuous concrete of the utility model mixing plant is produced cement concrete, water consumption obviously reduces, and the workability of its cement concrete and indexs such as intensity, durability thereof are much better than the cement concrete performance index that existing mixing plant is produced.Its cardinal principle is: stir mortar in advance and cement, powder are mixed fully and evenly with the sand material, sand grains can fully be wrapped up by cement, after forming half-dried mortar, in horizontal feed belt, hopper and 10～15 seconds course of conveying of lifting belt conveyor, make cement, powder have the fair time of dividing to deposit and be bonded on the sand material.Mortar is more strong and powerful to impact, friction, the bonding meeting on building stones surface when mortar and building stones mix.Building stones are wrapped up more fully by mortar, more complete closely between the building stones by slurry placement, thus because reducing, water consumption significantly reduces the possibility that produces the slit, these have played conclusive effect to improving workability and intensity, durability or the like index.Repetition test facts have proved: adopting the pre-agitating type continuous concrete of the utility model mixing plant, have many-sided advantage, at first is that the coagulating cement native produce of being produced has improved performance indications such as workability greatly obviously.The pre-agitating type technical process of mortar power savings advantages is outstanding under identical output and external condition: as previously mentioned, pre-mixer position is at below ground, the position is lower, raw material need not promote many height, the traditional clearance-type mixing plant of the first generation particularly, because links such as middle bucket are arranged, variously gather materials, cement, powder etc. all will consume much electricity and promote very big height and inject mixer downwards and operate, therefore first generation mixing plant external form is very tall and big, raw material will be made progress operate the many electric energy of waste downwards.
The pre-agitating type continuous concrete of the utility model mixing plant, batching matches with the feeding process, and mortar and building stones has been made thinner in the feeding process and uniform, and friction feeding, one side the charging another side with regard to output high grade cement concrete finished product.Operational paradigm is very high.Also saved the power that mixing plant need be used simultaneously, with 3 meters
3The mixing plant of/minute cement concrete output is an example, the mixer power of tradition mixing plant need be used 110KW, and two mixer sum total required horsepowers of the pre-agitating type mixing plant of the utility model are 73.5KW (first order 18.5KW, second level 55KW), save the energy 33.18%.Therefore, the utility model mixing plant energy-saving effect is outstanding, and social benefit and economic benefit are all very outstanding.
The pre-agitating type mixing plant of the utility model first order mixer is under ground level, and its whole mixing plant seems very mild; Highly reduced manyly, this not only economizes in raw materials and promotes the required energy of high height, and has saved device fabrication greatly and need use steel, with 3M
3The mixing plant of/minute cement concrete output is an example, compares with traditional mixing plant, and both maximum height difference are about 8 meters, can make in the equipment various steel brackets etc. save steel more than 25%.With rational process layout is that the pre-agitating type mixing plant of prerequisite the utility model mortar floor space reduces 10～15%.
Claims (10)
1, the pre-agitating type continuous concrete of a kind of mortar mixing plant, it is characterized in that including the continous way building stones proportioning machine (1) that several are provided with LOAD CELLS, several are provided with the continous way sand material proportioning machine (2) of LOAD CELLS, the pre-mixer of mortar (21), cement continous way proportioning machine (19), powder continous way proportioning machine (17), switching bucket (20), promote belt conveyor (16), secondary mixer (15), wherein continous way building stones proportioning machine (1) bottom is provided with by ratio requirement with certain speed, consumption accurately, deliver to the building stones proportioning belt (24) on the horizontal feed belt (22) continuously equably, continous way sand material proportioning machine (2) bottom is provided with sand material proportioning belt (23), horizontal feed belt (22) is laid on the below of pre-mixer (21) outlet, pre-mixer (21) is arranged on the below of the discharge end of sand material proportioning belt (23), cement continous way proportioning machine (19) top is provided with several cement storage bins (7), powder continous way proportioning machine (17) top is provided with several powder storage bins (8), the below of cement continous way proportioning machine (19) and powder continous way proportioning machine (17) is provided with cement, powder is delivered to the conveying device (18) that stir pre-mixer (21) lining, the top of pre-mixer (21) also is provided with little water tank (6), switching bucket (20) is arranged on the below of the port of export of horizontal feed belt (22), the feed end that promotes belt conveyor (16) is arranged on the outlet below of switching bucket (20), the discharge end that promotes belt conveyor (16) is arranged on the top of secondary mixer (15), and the top of secondary mixer (15) also is provided with large water tank (14).
2, the pre-agitating type continuous concrete of mortar according to claim 1 mixing plant is characterized in that above-mentioned conveying device (18) is the conveyor screw device that gathers materials.
3, the pre-agitating type continuous concrete of mortar according to claim 1 mixing plant is characterized in that the top of above-mentioned secondary mixer (15) also is provided with additive case (9).
4, the pre-agitating type continuous concrete of mortar according to claim 3 mixing plant is characterized in that above-mentioned additive case (9) is provided with LOAD CELLS.
5, the pre-agitating type continuous concrete of mortar according to claim 3 mixing plant, it is characterized in that above-mentioned additive case (9) adds batch meter (10) by first water pump (11) with additive, batch meter (10) adds secondary mixer (15) by second water pump (12) with additive.
6, the pre-agitating type continuous concrete of mortar according to claim 1 mixing plant is characterized in that the above-mentioned little water tank of water (6) that adds adds pre-mixer (21) by water pump (5), flowmeter (4) and flow regulating and controlling valve (3) with water.
7, the pre-agitating type continuous concrete of mortar according to claim 6 mixing plant is characterized in that above-mentioned flowmeter (4) is a turbine flowmeter.
8, according to the pre-agitating type continuous concrete of each described mortar of claim 1 to 7 mixing plant, it is characterized in that the pre-mixer of above-mentioned mortar (21) is single horizontal axis continuous flow pugmill, secondary mixer (15) is single horizontal axis or dual horizontal axle continuous mixer.
9, the pre-agitating type continuous concrete of mortar according to claim 8 mixing plant, it is characterized in that above-mentioned cement continous way proportioning machine (19) and powder continous way proportioning machine (17) include hopper and gage probe, its hopper lower part outlet place is provided with by driven by motor and according to the size of motor speed and regulates what rotation plate washer of its discharging quantity.
10, the pre-agitating type continuous concrete of mortar according to claim 9 mixing plant is characterized in that above-mentioned large water tank (14) and little water tank (6) can merge into a water tank.
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| CNU200720179078XU CN201214278Y (en) | 2007-12-29 | 2007-12-29 | Mortar pre-stirring type continuous cement concrete stirring station |
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| CNU200720179078XU CN201214278Y (en) | 2007-12-29 | 2007-12-29 | Mortar pre-stirring type continuous cement concrete stirring station |
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| GB2459929A (en) * | 2008-05-14 | 2009-11-18 | Campbell Brown | Method and Apparatus for Preparing Dry Mortar |
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| GB2459929A (en) * | 2008-05-14 | 2009-11-18 | Campbell Brown | Method and Apparatus for Preparing Dry Mortar |
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