TWI570230B - Continuous feeding device - Google Patents

Description

Continuous feeding device

The present disclosure relates to a feeding device, and more particularly to a continuous feeding device that continuously feeds material to a material storage tank.

With the rapid development of science and technology and the rapid development of the environment, people are constantly consuming energy. However, natural resources such as oil are not inexhaustible. Therefore, all countries are committed to the development of new alternative energy sources. And biomass energy is a part of renewable energy that is currently developing.

In the manufacturing process of biomass energy, powdery or granular raw materials must be transported to the reactor in a continuous feed to crack the raw materials to form a raw oil.

In the conventional continuous feeding system of raw materials, the raw materials are usually sent to the material storage tank by means of conveyor belt or vacuum suction, and then sent to the downstream reactor for cracking reaction. The conveyor belt is a simple material conveying device. However, due to the large floor space, it is often replaced by a vacuum suction device. The vacuum material can be used to send the raw materials to the material storage tank. Go to the material reactor to carry out the reaction.

Because the raw material has the characteristics of light weight, small density, large angle of repose, high water content and poor fluidity, the conventional vacuum suction device is easy to cause bridging, and it is almost impossible to continuously supply. In order to solve the bridging phenomenon of the conventional vacuum suction device, the discharge gravity plate of the cone bottom of the existing vacuum suction device is cancelled, and the lower hopper and the rotary valve are added, and the continuous feeding can be achieved during the normal pressure operation. basic skills. Only with a vacuum suction device When the material storage tank is continuously discharged to the material storage tank, a partial negative pressure is generated in the material storage tank due to the rotation of the rotary valve and the rotor clearance, the rotor rotation speed and the inlet and outlet pressure difference. This partial negative pressure will cause the high temperature gas connected to the reactor downstream of the material storage tank to flow backward in the direction of the material storage tank. When the high-temperature counter-current gas flows to the material to be conveyed, the raw material containing water is heated to generate moisture, so that it is easy to cause material to be bridged, agglomerated, and blocked when the material is fed to the reactor, so that the material cannot be continuously fed. And the reactor is inoperable.

Therefore, how to solve the problem in the prior art that the feeding system generates material bridging, agglomeration and the like in the material storage tank during continuous feeding has become a problem to be solved at present.

The present disclosure provides a continuous feeding device comprising a suction machine, a first rotary valve, an air valve, a second rotary valve, a gate valve and a material storage tank. The suction machine has a suction port and a feeding port, the suction machine sucks the material from the suction port and sends the material through the feeding port; the first rotary valve is disposed under the suction machine and has the first a discharge port for receiving the material from the feed port and feeding the material from the first discharge port by rotation; the air valve is in communication with the first rotary valve for passing outside air through the first a rotary valve is inserted into the suction machine; a second rotary valve is disposed under the first rotary valve and has a second discharge port for receiving the material from the first discharge port and rotating from the first The second discharge port sends the material; the gate valve is disposed at the second discharge port to open or close the second discharge port; the material storage tank is disposed below the gate valve to receive the material sent from the second discharge port At the same time receiving from the outside The positive pressure gas is input to the positive pressure state when the material is received in the material storage tank.

Compared with the prior art, the disclosure utilizes the rotation of the first rotary valve and the second rotary valve to continuously feed the material into the material storage tank, and introduces the outside air by the air valve to make the outside air toward the suction machine. The direction of flow (to compensate for the amount of gas leakage caused by the suction of the material), and the positive pressure gas is externally supplied to the material storage tank to avoid negative pressure in the material storage tank, so that the material storage tank When the material is received internally, it is in a positive pressure state, preventing the high-temperature gas flowing downstream of the material storage tank from flowing back, preventing the material from bridging and agglomerating.

The embodiments of the present disclosure are described below by way of specific embodiments, and those skilled in the art can readily appreciate the other advantages and functions of the present disclosure.

It is to be understood that the structure, the proportions, the size and the like of the present invention are only used to clarify the disclosure of the specification for the understanding and reading of those skilled in the art, and are not intended to limit the disclosure. The conditions are limited, so it is not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should remain in this book without affecting the effectiveness and the purpose of the creation. The technical content revealed by the creation can be covered. In the meantime, the terms "first", "second", "above" and "below" are used in this specification for convenience of description only, and are not intended to limit the scope of the present invention. The change or adjustment of the relative relationship, when there is no substantive change in the content of the technology, A range that can be implemented.

Please refer to FIG. 1 , which is a schematic diagram of the basic components of the continuous feeding device of the present disclosure. The continuous feeding device 1 of the present disclosure mainly includes a suction machine 10, a first rotary valve 11, an air valve 12, a second rotary valve 13, a gate valve 14, and a material storage tank 15.

The suction machine 10 has a suction port 101 and a feed port 102 for taking in material from the suction port 101 and feeding the material through the feed port 102. The suction machine 10 is generally a vacuum suction machine, and is connected with a blower 103, and a filter bag 104 is disposed inside the suction machine 10, and a suction force is provided by the air blower 103, so that the suction machine 10 can take the material by the suction force. The suction port 101 is sucked in and sent out from the feed port 102 to the first rotary valve 11, and the filter bag 104 can be disposed between the suction port 101 and the blower 103 to prevent the material from being sucked out by the blower 103.

The first rotary valve 11 is disposed under the feeding port 102 of the suction machine 10 to receive the material, and the first rotary valve 11 has a first discharge port 111, and the material sent by the suction machine 10 from the feeding port 102 enters the first The valve 11 is rotated, and the material is continuously sent out from the first discharge port 111 by the rotation of the first rotary valve 11. The detailed description of the first rotary valve 11 is described in the following second drawing.

In the embodiment shown in Fig. 1, the continuous feeding device 1 may further include a first lower hopper 16a disposed between the suction machine 10 and the first rotary valve 11, and the first lower hopper 16a may be used to receive the self-feeding material. The material sent from the port 102 is then sent to the first rotary valve 11.

The air valve 12 is in communication with the first rotary valve 11 for introducing outside air into the first rotary valve 11 to enter the suction machine 10, so that the outside air enters The first rotary valve 11 is introduced and flows in the direction of the suction machine 10. The air valve 12 can be, for example, an air solenoid valve.

The second rotary valve 13 is disposed below the first discharge port 111 of the first rotary valve 11, and the second rotary valve 13 has a second discharge port 131, and the second rotary valve 13 can be used to receive the first rotation The material sent from the valve 11 is continuously sent out from the second discharge port 131. The detailed description of the second rotary valve 13 is described in the following second drawing.

In the embodiment shown in FIG. 1, the continuous feeding device 1 may further include a second lower hopper 16b disposed between the suction machine 10 and the first rotary valve 11, and the second lower hopper 16b is received from the first The material sent out from a discharge port 111 is sent to the material storage tank 15. In addition, the air valve 12 can be coupled to the second lower hopper 16b for allowing outside air to enter the suction machine 10 through the second lower hopper 16b through the first rotary valve 11 to compensate for the suction of the material by the suction machine 10. The amount of gas leakage in the direction of the suction machine 10.

The gate valve 14, or air curtain valve 14, is disposed at the second discharge port 131 to open or close the second discharge port 131.

The material storage tank 15 is disposed under the gate valve 14 to receive the material continuously sent from the second discharge port 131, and receives the positive pressure gas 20 input from the outside, so that the material storage tank 15 receives the material. The time is a positive pressure state, wherein the so-called positive pressure state means that the pressure inside the material storage tank 15 is greater than or equal to the pressure inside the reactor when the material storage tank 15 is connected to the reactor.

Please refer to FIG. 2 , which is a schematic cross-sectional view of the first and second rotary valves of the present disclosure. In the second figure, the first rotary valve 11 is taken as an embodiment. The first rotary valve 11 can include a first housing 112, a first rotor 113 disposed in the first housing 112, and a first inlet 110 connected to the first lower hopper 16a, and the first rotor gap 114 is formed between the first housing 112 and the first rotor 113.

The material sent from the feed port 102 of the suction machine 10 enters the first rotary valve 11 from the first feed port 110 via the first lower hopper 16a, and the arrow A direction shown in the figure is the material direction, and then The rotation of the first rotor 113 (for example, counterclockwise rotation in the direction of the arrow) is sent from the first discharge port 111. During the rotation of the first rotor 113, the gas in the material storage tank 15 may sequentially pass through the gate valve 14, the second rotary valve 13, and the second lower hopper 16b from the first rotor gap 114 due to the suction material of the suction machine 10. The direction of the suction machine 10 (direction of arrow B) leaks, causing a negative pressure in the material storage tank 15, which may cause the high temperature gas in the reactor connected to the downstream of the material storage tank 15 to flow in the direction of the material storage tank 15. And such a high-temperature counter-flow gas will heat the material in the material storage tank 15 to generate moisture, and the characteristics of the material itself are light weight, low density, large angle of repose and poor fluidity, etc., and are easy to be used in the material storage tank. 15 causes bridging, agglomeration or blockage of materials between the reactors downstream thereof, making it difficult to continuously feed the materials into the reactor. At this time, the air valve 12 connected to the second lower hopper 16b and communicating with the first rotary valve 11 allows the outside air to enter the suction machine through the first rotary valve 11 to compensate for the suction of the material by the suction machine 10. The amount of gas leakage in the direction of the suction machine 10.

Furthermore, the second rotary valve 13 is similar to the structure of the first rotary valve 11, and may include a second housing, a second rotor disposed in the second housing, and a connection a second feed port of the second lower hopper, and a second rotor gap is formed between the second rotor and the second housing, and wherein the material enters the second rotary valve from the second feed port and It is sent from the second discharge port 131 to the material storage tank 15 by the rotation of the second rotor.

Please refer to FIG. 3, which is an application example of the continuous feeding device of the present disclosure. In this embodiment, the material storage tank 15 can be connected to the reactor 19, and the material feeding conveyor 17 and the feed conveyor 18 are sequentially disposed between the material storage tank 15 and the reactor 19, and the materials can be self-contained. The tank 15 is sequentially conveyed to the reactor 19 by the feed conveyor 17 and the feed conveyor 18 to carry out a cracking reaction.

Further, in the present embodiment, a pressure difference detector 152 is provided between the material storage tank 15 and the reactor 19 to detect a pressure difference between the material storage tank 15 and the reactor 19. Since the high-temperature positive pressure gas in the reactor 19 is reversed in the direction of the material storage tank 15, in the present embodiment, the pressure difference detector 152 is disposed between the material storage tank 15 and the discharge conveyor 17, that is, The pressure difference between the reactor 19 and the material storage tank 15 can be detected, but this arrangement is merely illustrative of the embodiments and is not intended to limit the disclosure.

Furthermore, in the present embodiment, the continuous feeding device 1 may further include a controller 153, the controller 153 shown in FIG. 3 is a servo motor, and the controller 153 may receive the feedback from the differential pressure detector 152. The result is detected to control the flow rate of the positive pressure gas 20 entering the material storage tank 15 according to the detection result, so that the pressure inside the material storage tank 15 is greater than or equal to the pressure inside the reactor 19. In addition, the continuous feeding device 1 may further include an adjustable flow meter (not shown) electrically connected to the controller 153, and the controller 153 can receive the pressure The detection result of the difference detector 152 is used to generate a control command, which can detect the flow rate of the positive pressure gas 20 entering the material storage tank 15 and adjust the positive pressure gas entering the material storage tank 15 according to the control command of the controller 153. The flow rate of 20 is such that the pressure inside the material storage tank 15 is greater than or equal to the pressure inside the reactor 19 to control the pressure between the material storage tank 15 and the reactor 19 to be in equilibrium, thereby ensuring high temperature in the reactor 19. The pressurized gas does not enter the material storage tank 15 via the feed conveyor 18 or the blank conveyor 17.

In the actual implementation, the suction is provided by the blower 103 to the suction machine 10 to suck the material from the suction port 101 of the suction machine 10, and is sent out from the feed port 102, and the material is concentrated through the first lower hopper 16a. The second rotary valve 11 is fed to the first rotary valve 11, and the material is continuously discharged from the first discharge port 111 by the rotation of the first rotary valve 11, and then introduced into the second rotary valve 13 via the second lower hopper 16b.

While the first rotary valve 11 is rotated to continuously feed, the outside air can be introduced through the air valve 12, and the external air passes through the second lower hopper 16b through the first rotor gap of the first rotary valve 11 toward the suction machine. The direction of 10 flows to compensate for the amount of gas leakage from the first rotary valve 11 in the direction of the suction machine 10 due to the rotation, thereby avoiding the formation of a negative pressure in the material storage tank 15 due to the suction force provided by the suction machine 10.

After the material enters the second rotary valve 13, the material is continuously continuously discharged from the second discharge port 131 of the second rotary valve 13 to enter the material storage tank 15 by the second rotary valve 13 in a continuous underground material.

It should be noted that when in the continuous operation state, the gate valve 14 It is in the fully open state to avoid affecting the continuous cutting of the second rotary valve 13. In addition, in order to avoid the bridging or agglomeration of the material caused by the high temperature positive pressure gas of the reactor 19 flowing back to the material storage tank 15, a positive pressure gas 20 may be input into the material storage tank 15 to balance between the reactor 19 and the material storage tank 15. The pressure, wherein the positive pressure gas may be a cracking gas, an inert gas or air, but is not limited thereto.

When the material storage tank 15 needs to replenish materials (for example, wood chips), firstly, the first rotary valve 11, the second rotary valve 13 and the gate valve 14 are activated, and the input positive pressure gas 20 (cracking gas, inert gas or air) is adjusted. The pressure is controlled to balance the pressure in the material storage tank 15 with the pressure of the reactor 19. The blower 103 of the suction machine 10 and the air valve 12 are synchronized (ON) or closed (OFF). When the blower 103 is activated to replenish the material to the material storage tank 15, a partial negative pressure is formed in the material storage tank 15 downstream of the first rotary valve 11, and the activation of the air valve 12 allows the outside air to enter the suction machine 10. A partial negative pressure is prevented from forming in the material storage tank 15. Thereby, the partial negative pressure can be prevented from causing the reactor connected to the downstream of the material storage tank to generate a high-temperature countercurrent gas in the direction of the material storage tank 15, so that the reactor cannot be operated due to no feeding.

In summary, the continuous feeding device of the present disclosure basically comprises a suction machine, first and second rotary valves, an air valve interposed between the first and second rotary valves, and is disposed at the first and second Gate valve and material storage tank downstream of the rotary valve. The air valve is configured to introduce an external gas to allow the outside air to enter the suction machine through the first rotary valve to avoid forming a partial negative pressure in the material storage tank; and the material storage tank receives the positive pressure gas input from the outside, In order to maintain the pressure balance between the material storage tank and the reactor connected thereto, the material storage tank is The pressure in the section is greater than or equal to the pressure inside the reactor. Therefore, with the operation of the continuous feeding device of the present disclosure, the material does not cause bridging or agglomeration, and thus can be continuously fed into the downstream reactor.

The above embodiments are intended to illustrate the principles of the disclosure and its functions, and are not intended to limit the disclosure. Any person skilled in the art can modify the above embodiments without departing from the spirit and scope of the disclosure. Therefore, the scope of protection of the present disclosure should be as set forth in the scope of the patent application described later.

1‧‧‧Continuous feeding device

10‧‧‧ suction machine

101‧‧‧ suction port

102‧‧‧ Feeding port

103‧‧‧Blowers

104‧‧‧ filter bag

11‧‧‧First rotary valve

110‧‧‧First inlet

111‧‧‧First discharge opening

112‧‧‧First housing

113‧‧‧First rotor

114‧‧‧First rotor clearance

12‧‧‧Air valve

13‧‧‧Second rotary valve

131‧‧‧Second outlet

14‧‧‧ gate valve

15‧‧‧ material storage tank

152‧‧‧Pressure difference detector

153‧‧‧ Controller

16a‧‧‧First hopper

16b‧‧‧Second hopper

17‧‧‧Unloading conveyor

18‧‧‧feed conveyor

19‧‧‧Reactor

20‧‧‧ positive pressure gas

1 is a schematic view of the basic components of the continuous feeding device of the present disclosure; FIG. 2 is a schematic cross-sectional view of the first and second rotary valves of the continuous feeding device of the present disclosure; and FIG. 3 is a continuous advance of the disclosure Application examples of the material device.

1‧‧‧Continuous feeding device

10‧‧‧ suction machine

101‧‧‧ suction port

102‧‧‧ Feeding port

103‧‧‧Blowers

104‧‧‧ filter bag

11‧‧‧First rotary valve

111‧‧‧First discharge opening

12‧‧‧Air valve

13‧‧‧Second rotary valve

131‧‧‧Second outlet

14‧‧‧ gate valve

15‧‧‧ material storage tank

16a‧‧‧First hopper

16b‧‧‧Second hopper

20‧‧‧ positive pressure gas

Claims (9)

A continuous feeding device comprising: a suction machine having a suction port and a feeding port for sucking material from the suction port and feeding the material through the feeding port; the first rotary valve is disposed at the suction A first discharge port is disposed under the feeder for receiving the material from the feed port and is sent from the first discharge port by rotation; a second rotary valve is disposed under the first rotary valve And having a second discharge port for receiving the material from the first discharge port and sending the material from the second discharge port by rotating; the air valve is disposed on the first rotary valve and the Between the second rotary valve and the first rotary valve and the second rotary valve, the external air enters the suction machine through the first rotary valve; the gate valve is disposed at the second discharge port To open or close the second discharge port; and a material storage tank disposed below the gate valve and connected to the reactor to receive the material sent from the second discharge port, and receive the positive pressure from the external input Gas, so that the pressure in the material storage tank is greater than or equal to the inside of the reactor Pressure to maintain a positive pressure. The continuous feeding device according to claim 1, wherein the suction machine is connected with a blower for providing a suction force to suck the material from the suction port into the suction machine, and The suction machine causes the outside air to flow in the direction of the suction machine by the blower. The continuous feeding device as described in claim 1 of the patent application, including a first lower hopper disposed between the suction machine and the first rotary valve, the first lower hopper being configured to receive the material sent from the feed port. The continuous feeding device of claim 3, wherein the first rotary valve comprises a first housing, a first rotor disposed in the first housing, and a first connecting hopper a feed port, and wherein the material enters the first rotary valve from the first feed port and is sent out from the first discharge port by the rotation of the first rotor. The continuous feeding device of claim 1, further comprising a second lower hopper disposed between the first rotary valve and the second rotary valve, the second lower hopper being configured to receive from the first A material delivered from a discharge port. The continuous feeding device of claim 5, wherein the air valve is connected to the second lower hopper for allowing the outside air to enter the suction through the first rotary valve through the second lower hopper Feeder. The continuous feeding device of claim 5, wherein the second rotary valve comprises a second housing, a second rotor disposed in the second housing, and a second connecting hopper a second feed port, and wherein the material enters the second rotary valve from the second feed port and is sent out from the second discharge port by the rotation of the second rotor. The continuous feeding device according to claim 1, further comprising a pressure difference detector disposed between the material storage tank and the reactor, wherein the pressure difference detector is configured to detect the material storage tank and The pressure difference between the reactors. The continuous feeding device as described in claim 8 of the patent application, including The controller is configured to receive the detection result of the pressure difference detector to control the flow rate of the positive pressure gas input into the material storage tank, so that the pressure inside the material storage tank is greater than or equal to the pressure inside the reactor.