Gasification method based nanometer oxide powder production tail gas washing tower

Abstract

The application relates to the technical field of water suction pumps and discloses a tail gas washing tower based on a gasification method nano-oxide powder production, which comprises a mounting seat, a tower body arranged at the upper end of the mounting seat, a washing unit arranged in the tower body, a delay component arranged in the tower body and a liquid supply component. Tail gas is blocked by a sliding plate in a closed state. When the tail gas continuously enters the tower body, the internal pressure gradually increases, the sliding plate slowly moves upwards under the action of the pressure, the tail gas is always in contact with washing liquid during the movement process, the pollutants in the tail gas can be completely and smoothly washed, and when the sliding plate moves upwards by a certain distance, an upper trigger block and a matched block one are in contact to drive a blocking plate to slide in the horizontal direction, and the completely washed tail gas flows out.

Description

Technical Field

[0001] This invention relates to the technical field of waste gas scrubbing, and more particularly to a tail gas scrubbing tower based on the production of nano-oxide powder by gasification. Background Technology

[0002] In the production process of gasification nano-oxide powder, harmful exhaust gases are often generated due to factors such as high temperature and chemical reactions. These exhaust gases need to be effectively purified. Exhaust gas scrubbing towers are usually used to remove solid particles, harmful gases (such as organic chemicals, acidic gases, solvent vapors, etc.) and water vapor from the gas. The working principle is as follows: In the production of gasification nano-oxide powder, the exhaust gas enters the scrubbing tower through a pipeline. The scrubbing tower removes harmful substances from the exhaust gas by liquid spraying or absorption. The specific process includes: the exhaust gas is introduced into the bottom of the scrubbing tower and comes into contact with the gas through spraying or absorption liquid. The liquid is evenly distributed through nozzles, packing and other devices and comes into contact with the gas. The pollutants are adsorbed or dissolved in the liquid. The purified gas is discharged from the top of the tower and meets the emission standards.

[0003] Existing waste gas scrubbing towers have the following problems: The contact time between waste gas and scrubbing liquid is one of the important factors determining the scrubbing effect. If the contact time between waste gas and scrubbing liquid is too short, pollutants may not be fully dissolved or adsorbed into the scrubbing liquid, resulting in incomplete scrubbing. The reasons for incomplete scrubbing may include: excessively high gas flow rate, insufficient liquid spray volume, and short gas-liquid contact time. If the gas-liquid contact time is extended, the internal volume of the scrubbing tower needs to be increased or atomizing nozzles need to be added at multiple sections. Although these measures can improve the scrubbing effect, they will increase costs and take up more space when the volume is increased, which has significant limitations. If the liquid spray volume is large, it will lead to liquid waste. Summary of the Invention

[0004] In view of the problem that the short contact time between exhaust gas and washing liquid in the existing technology leads to insufficient washing, a tail gas scrubbing tower based on gasification method for producing nano-oxide powder is proposed.

[0005] This application provides a tail gas scrubbing tower based on the gasification method for producing nano-oxide powder. The purpose is to: by setting a delay component, the tail gas is blocked by a sliding plate in a closed state. As the tail gas continues to enter the tower, the internal pressure gradually increases. Under the action of pressure, the sliding plate slowly moves upward. During the movement, the tail gas is always in contact with the scrubbing liquid while being blocked, ensuring that all pollutants in the tail gas can be washed smoothly. When the sliding plate moves upward a certain distance, the upper trigger block and the first cooperating block come into contact with each other, causing the baffle plate to slide horizontally. During the sliding process, the sliding plate is in an open state, at which time the completely washed tail gas flows out.

[0006] The technical solution of the present invention is: a tail gas scrubbing tower based on gasification method for the production of nano-oxide powder, including a mounting base, a tower body disposed on the upper end of the mounting base, and a scrubbing unit disposed inside the tower body. The scrubbing unit includes a delay component and a liquid supply component disposed inside the tower body.

[0007] The delay component includes a venting plate disposed inside the tower body, a sliding plate disposed at the lower end of the venting plate, an installation groove opened inside the sliding plate, a sealing plate slidably installed inside the installation groove, an upper trigger block disposed at the upper end of the sealing plate, a lower trigger block disposed at the lower end of the sealing plate, a first mating block disposed at the lower end of the venting plate, multiple support rods disposed on the inner wall of the tower body, and a second mating block disposed at the upper end of the support rods.

[0008] The sliding plate is located between the vent plate and the support rod, with the vent plate at the top. The upper trigger block cooperates with the corresponding mating block one, and the lower trigger block cooperates with the corresponding mating block two. In the initial state, there is a distance between the sliding plate and the vent plate, and the sliding plate is in a sealed state at this time.

[0009] Furthermore, the liquid supply component includes a liquid delivery pipe disposed at the upper end of the sliding plate, a plurality of atomizing nozzles disposed at the lower end of the sliding plate, all of which are connected to the liquid delivery pipe, a flow pipe disposed at the upper end of the liquid delivery pipe, the flow pipe being made of a flexible hose material, and a kinetic energy component installed on the outer side of the tower body.

[0010] Furthermore, the kinetic energy component includes a support seat disposed on the outer wall of the tower body, a liquid pump disposed on the support seat, one end of the flow pipe being connected to the liquid pump, and an inlet pipe being fixedly installed on the side wall of the liquid pump.

[0011] Furthermore, a demister plate is fixedly installed at the upper interior of the tower body, and the demister plate is located directly above the ventilation plate.

[0012] Furthermore, an air inlet pipe is fixedly installed at the lower end of the outer wall of the tower body, and the air inlet pipe is used to introduce exhaust gas into the interior of the tower body.

[0013] Furthermore, an exhaust pipe is fixedly installed at the upper end of the tower body, which is used to discharge the washed gas.

[0014] Furthermore, an observation window is provided on the outer wall of the tower body, which is used to observe the internal conditions of the tower body.

[0015] Furthermore, a drain pipe is fixedly installed at the lower end of the tower body, which is used to discharge the washing liquid after washing into the tower body.

[0016] The beneficial effects of this invention are:

[0017] By incorporating a delay component, the initially closed sliding plate blocks the exhaust gas. As the exhaust gas continues to enter the tower, the internal pressure gradually increases, causing the sliding plate to slowly rise under pressure. During this movement, the exhaust gas remains in contact with the washing liquid while being blocked, ensuring that all pollutants in the exhaust gas are successfully washed. After the sliding plate has moved upward a certain distance, the upper trigger block and the mating block 1 come into contact, causing the sealing plate to slide horizontally. During this sliding process, the sliding plate opens, allowing the completely washed exhaust gas to flow out. Therefore, our invention can guarantee the washing time and effectiveness of the exhaust gas without adding additional atomizing nozzles or increasing the height of the washing tower, effectively reducing operating costs.

[0018] By setting the lower trigger block and the second cooperating block, when the baffle is opened, the washed exhaust gas is discharged, and the pressure at the lower end of the sliding plate gradually decreases. During the decrease, the sliding plate moves slowly downward under the action of gravity. After the lower trigger block and the second cooperating block come into contact with each other, the baffle is closed again, and at this time, the exhaust gas that has not been washed is located at the lower end of the sliding plate. At this time, the above operation is repeated, and the sliding plate moves slowly upward under the action of pressure. During the movement, its washing liquid fully washes the exhaust gas.

[0019] By setting up a liquid supply component and using a flexible hose material for the flow tube, the flow tube can automatically bend to meet the vertical movement of the sliding plate, and ensure that the washing liquid can always be input into the atomizing nozzle to wash the exhaust gas while the sliding plate is sliding vertically. Attached Figure Description

[0020] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a partial frontal view of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the internal structure of the tower body of the present invention;

[0025] Figure 6 This is a schematic diagram of the delay component structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the atomizing nozzle mounting structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the sliding plate structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the sealing plate installation structure of the present invention.

[0029] In the picture:

[0030] 1. Mounting base; 2. Tower body; 101. Ventilation plate; 102. Sliding plate; 103. Mounting groove; 104. Sealing plate; 105. Upper trigger block; 106. Lower trigger block; 107. Matching block one; 108. Support rod; 109. Matching block two; 201. Infusion pipe; 202. Atomizing nozzle; 203. Flow pipe; 301. Bearing base; 302. Liquid pump; 303. Water inlet pipe; 401. Demisting plate; 402. Air inlet pipe; 403. Air outlet pipe; 404. Observation window; 405. Drain pipe. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1, referring to Figures 1-9 The first embodiment of the present invention provides a tail gas scrubbing tower for the production of nano-oxide powder based on gasification method, including a mounting base 1, a tower body 2 fixedly mounted on the upper end of the mounting base 1, and a scrubbing unit installed inside the tower body 2. The scrubbing unit includes a delay component and a liquid supply component installed inside the tower body 2.

[0033] The delay components include a venting disc 101 fixedly installed inside the tower body 2, a sliding plate 102 slidably installed at the lower end of the venting disc 101, a mounting groove 103 opened inside the sliding plate 102, a sealing plate 104 slidably installed inside the mounting groove 103, an upper trigger block 105 fixedly installed at the upper end of the sealing plate 104, a lower trigger block 106 fixedly installed at the lower end of the sealing plate 104, a first mating block 107 fixedly installed at the lower end of the venting disc 101, multiple support rods 108 fixedly installed on the inner wall of the tower body 2, and a second mating block 109 fixedly installed at the upper end of the support rods 108.

[0034] The sliding plate 102 is located between the vent plate 101 and the support rod 108. The vent plate 101 is located at the top. The upper trigger block 105 cooperates with the corresponding mating block 107, and the lower trigger block 106 cooperates with the corresponding mating block 2 109. In the initial state, there is a distance between the sliding plate 102 and the vent plate 101, and the sliding plate 102 is in a sealed state at this time.

[0035] A demister plate 401 is fixedly installed at the upper part of the interior of the tower body 2, located directly above the ventilation plate 101. An air inlet pipe 402 is fixedly installed at the lower part of the outer wall of the tower body 2, used to introduce exhaust gas into the interior of the tower body 2. An air outlet pipe 403 is fixedly installed at the upper part of the tower body 2, used to discharge the washed gas. An observation window 404 is provided on the outer wall of the tower body 2 for observing the interior of the tower body 2. A drain pipe 405 is fixedly installed at the lower part of the tower body 2, used to discharge the washing liquid from the interior of the tower body 2.

[0036] Specifically, the height between the intake pipe 402 and the bottom of the tower is H (refer to...). Figure 3 (H in the text) The height of the washing liquid at the bottom of the tower is not higher than H, and the liquid volume discharged by the drain pipe 405 is always equal to the liquid volume sprayed by the atomizing nozzle 202, so as to ensure that the height of the washing liquid inside the bottom of the tower remains unchanged, so as not to affect the discharge of the exhaust gas through the inlet pipe 402.

[0037] Specifically, the delay component is used to delay the time it takes for the exhaust gas to pass through the washing zone, ensuring that the exhaust gas can be completely washed and preventing insufficient washing. Existing scrubbing towers have the following problems when washing exhaust gas: if the contact time between the exhaust gas and the washing liquid is too short, pollutants may not be fully dissolved or adsorbed into the washing liquid, resulting in incomplete washing. The reasons for incomplete washing may include: excessively high gas flow rate, insufficient liquid spray volume, and short gas-liquid contact time. If the gas-liquid contact time is extended, the internal volume of the scrubbing tower needs to be increased or atomizing nozzles 202 need to be added at multiple sections. Although these measures can increase the washing effect, they will increase the cost and take up more space when the volume is increased, which has significant limitations. If the liquid spray volume is large, it will lead to liquid waste.

[0038] Our invention eliminates the need for multiple atomizing nozzles 202 at various locations inside the tower body 2 by setting a delay component. It also eliminates the need to adjust the overall length of the tower body 2 to improve the washing effect on the exhaust gas. Through the delay component, the sliding plate 102 can gather the exhaust gas at the lower end and prevent it from flowing out. At this time, the detergent has enough time to wash the exhaust gas below. During the washing process, the sliding plate 102 moves slowly upward in the vertical direction. During the movement, the baffle plate 104 is opened, and the washed exhaust gas can be discharged, thereby effectively improving the washing efficiency.

[0039] Therefore, by setting a delay component, initially, the closed sliding plate 102 blocks the exhaust gas. As the exhaust gas continues to enter the tower body 2, its internal pressure gradually increases. Under the action of pressure, the sliding plate 102 slowly moves upward. During the movement, the exhaust gas remains in contact with the washing liquid while being blocked, ensuring that all pollutants in the exhaust gas can be washed smoothly. After the sliding plate 102 moves upward a certain distance (refer to...), Figure 4 (Distance in the middle), the upper trigger block 105 and the cooperating block 107 contact each other, causing the sealing plate 104 to slide in the horizontal direction, and during the sliding process, the sliding plate 102 is in the open state, at which time the exhaust gas that has been completely washed out flows out. Therefore, our invention can ensure the washing time and effect of the exhaust gas without adding an additional atomizing nozzle 202 or increasing the height of the washing tower, effectively reducing operating costs.

[0040] By setting the lower trigger block 106 and the second cooperating block 109, when the baffle 104 is opened, the washed exhaust gas is discharged, and the pressure at the lower end of the sliding plate 102 gradually decreases. During the decrease, the sliding plate 102 moves slowly downward under the action of gravity. After the lower trigger block 106 and the second cooperating block 109 come into contact with each other, the baffle 104 is closed again, and at this time the exhaust gas that has not been washed is located at the lower end of the sliding plate 102. At this time, the above operation is repeated, and the sliding plate 102 moves slowly upward under the action of pressure. During the movement, its washing liquid fully washes the exhaust gas.

[0041] During use, exhaust gas is discharged into tower body 2 through air inlet pipe 402. Because sliding plate 102 is in a closed state, the exhaust gas discharged into tower body 2 is concentrated inside sliding plate 102. At this time, atomizing nozzle 202 continuously washes this part of exhaust gas. At the same time, as the exhaust gas continues to enter, the pressure in the area at the lower end of sliding plate 102 gradually increases. Sliding plate 102 slides slowly in the vertical direction. When sliding plate 102 slides upward L, trigger block 105 and mating block 107 on it come into contact with each other. The two squeeze each other and drive sealing plate 104 to slide in the horizontal direction. Sealing plate 104 is in an open state during the sliding process. The exhaust gas that has been washed out flows out through mounting groove 103.

[0042] As the waste gas flows out after washing, the pressure drop in the lower area of ​​the sliding plate 102 decreases instantly. At this time, the sliding plate 102 slides downward under the action of gravity. When it slides to the initial position, the lower trigger block 106 and the second mating block 109 come into contact with each other. The two press against each other to reset the sealing plate 104. At this time, the sealing plate 104 re-seals the mounting groove 103, and the sliding plate 102 is in a closed state again. This process is repeated to wash the exhaust gas in segments, ensuring its washing quality and effect.

[0043] Example 2, refer to Figures 3-5 This is the second embodiment of the present invention, which differs from the first embodiment in that: the liquid supply component includes a liquid delivery pipe 201 fixedly installed on the upper end of the sliding plate 102, multiple atomizing nozzles 202 fixedly installed on the lower end of the sliding plate 102, all of which are connected to the liquid delivery pipe 201, and a flow pipe 203 fixedly installed on the upper end of the liquid delivery pipe 201. The flow pipe 203 is made of a flexible hose material. A kinetic energy assembly is installed on the outer side of the tower body 2. The kinetic energy assembly includes a support base 301 fixedly installed on the outer wall of the tower body 2, a liquid pump 302 fixedly installed on the support base 301, one end of the flow pipe 203 connected to the liquid pump 302, and a water inlet pipe 303 fixedly installed on the side wall of the liquid pump 302.

[0044] Specifically, the flow tube 203 of the liquid supply component is made of a flexible tube to ensure that the flow tube 203 can always be connected to the infusion tube 201 when the sliding plate 102 slides in the vertical direction, so that the atomizing nozzle 202 can always be in the liquid spraying state when the sliding plate 102 moves in the vertical direction.

[0045] The remaining structure is the same as that in Example 1.

[0046] Based on embodiments 1-2, the working principle of the present invention is as follows: The exhaust gas is discharged into the tower body 2 through the air inlet pipe 402. Since the sliding plate 102 is in a closed state, the exhaust gas discharged into the tower body 2 is concentrated inside the sliding plate 102. At this time, the atomizing nozzle 202 continuously washes this part of the exhaust gas. At the same time, as the exhaust gas continues to enter, the pressure in the area at the lower end of the sliding plate 102 gradually increases, and the sliding plate 102 slides slowly in the vertical direction. When the sliding plate 102 slides upward L, the trigger block 105 and the mating block 107 on it come into contact with each other. The two squeeze each other and drive the sealing plate 104 to slide in the horizontal direction. The sealing plate 104 is in an open state during the sliding process, and the exhaust gas that has been washed out flows out through the mounting groove 103.

[0047] As the waste gas flows out after washing, the pressure drop in the lower area of ​​the sliding plate 102 decreases instantly. At this time, the sliding plate 102 slides downward under the action of gravity. When it slides to the initial position, the lower trigger block 106 and the second mating block 109 come into contact with each other. The two press against each other to reset the sealing plate 104. At this time, the sealing plate 104 re-seals the mounting groove 103, and the sliding plate 102 is in a closed state again. This process is repeated to wash the exhaust gas in segments, ensuring its washing quality and effect.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tail gas scrubbing tower for the production of nano-oxide powder based on gasification, comprising a mounting base (1) and a tower body (2) disposed at the upper end of the mounting base (1), characterized in that, It also includes a washing unit disposed inside the tower body (2), the washing unit including a delay component and a liquid supply component disposed inside the tower body (2); The delay component includes a ventilation plate (101) disposed inside the tower body (2), a sliding plate (102) disposed at the lower end of the ventilation plate (101), an installation groove (103) opened inside the sliding plate (102), a sealing plate (104) slidably installed inside the installation groove (103), an upper trigger block (105) disposed at the upper end of the sealing plate (104), a lower trigger block (106) disposed at the lower end of the sealing plate (104), a first mating block (107) disposed at the lower end of the ventilation plate (101), a plurality of support rods (108) disposed on the inner wall of the tower body (2), and a second mating block (109) disposed at the upper end of the support rods (108). The sliding plate (102) is located between the vent plate (101) and the support rod (108). The vent plate (101) is located at the top. The upper trigger block (105) cooperates with the corresponding mating block one (107), and the lower trigger block (106) cooperates with the corresponding mating block two (109). In the initial state, there is a distance between the sliding plate (102) and the vent plate (101), and the sliding plate (102) is in a sealed state at this time. The liquid supply component includes a liquid delivery pipe (201) disposed at the upper end of the sliding plate (102), a plurality of atomizing nozzles (202) disposed at the lower end of the sliding plate (102), the plurality of atomizing nozzles (202) being connected to the liquid delivery pipe (201), a flow pipe (203) disposed at the upper end of the liquid delivery pipe (201), the flow pipe (203) being made of a flexible hose material, and a kinetic energy component being installed on the outside of the tower body (2); The kinetic energy component includes a support seat (301) disposed on the outer wall of the tower body (2), a liquid pump (302) disposed on the support seat (301), one end of the flow pipe (203) being connected to the liquid pump (302), and an inlet pipe (303) being fixedly installed on the side wall of the liquid pump (302).

2. The tail gas scrubbing tower based on gasification method for producing nano-oxide powder as described in claim 1, characterized in that, A demisting disc (401) is fixedly installed at the upper interior of the tower body (2), and the demisting disc (401) is located directly above the ventilation disc (101).

3. The tail gas scrubbing tower based on gasification method for producing nano-oxide powder as described in claim 1, characterized in that, An air inlet pipe (402) is fixedly installed at the lower end of the outer wall of the tower body (2), and the air inlet pipe (402) is used to introduce exhaust gas into the interior of the tower body (2).

4. The tail gas scrubbing tower for the production of nano-oxide powder based on gasification method according to claim 1, characterized in that, An exhaust pipe (403) is fixedly installed at the upper end of the tower body (2), and the exhaust pipe (403) is used to discharge the washed gas.

5. A tail gas scrubbing tower based on gasification method for producing nano-oxide powder, as described in claim 1, is characterized in that... An observation window (404) is provided on the outer wall of the tower body (2), and the observation window (404) is used to observe the internal situation of the tower body (2).

6. A tail gas scrubbing tower based on gasification method for producing nano-oxide powder, as described in claim 1, is characterized in that... A drain pipe (405) is fixedly installed at the lower end of the tower body (2), and the drain pipe (405) is used to discharge the washing liquid after washing into the tower body (2).

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