Feed additive production for exhaust gas treatment devices

Abstract

The utility model belongs to the feed additive production technical field discloses a kind of feed additive production for waste gas treatment device, including the drain pipe of the bottom of the tank body connected with waste gas pipeline;The outlet end of the pressurized pump for supplying cleaning fluid is connected with the lance fixed in the tank body by pipeline;In the tank body, the lower portion of the lance is equipped with multiple partitions;Multiple pits are equipped on the partition;A small ball is placed in each pit, and a through hole is provided at the bottom of the pit;The density of the small ball is less than the density of the cleaning fluid sprayed by the lance. The utility model adopts water washing method to treat waste gas, simultaneously washes away dust and odor in waste gas, the combination of waste gas and cleaning fluid is sufficient, improves the effect and efficiency of waste gas purification;Without using filter screen, avoid blocking, high reliability, and equipment structure is simple, low in cost.

Description

Technical Field

[0001] This utility model belongs to the field of feed additive production technology, and relates to a feed additive production waste gas treatment device. Background Technology

[0002] The waste gas generated during feed additive production mainly contains carbon dioxide, sulfides, ammonia nitrogen, and dust, and also produces some irritating fumes and malodorous gases, which are directly emitted and pollute the environment. Existing technologies for treating these waste gases, such as those described in patents CN119236558A and CN117414650B, employ filters with complex anti-clogging mechanisms to ensure effective dust filtration. The waste gas is then atomized and mixed with a deodorizing agent to reduce pollutant emissions.

[0003] The shortcomings of existing waste gas treatment devices, such as those in the two patents mentioned above, are as follows: First, the waste gas flow rate is high, the contact time between the waste gas and the deodorizing agent is short, the reaction is insufficient, and the deodorization effect is inadequate. Second, the filtered dust remains in the device without automatic discharge measures and can still move downstream under the action of airflow, causing the deodorizing agent return pipe to be easily blocked by dust, reducing the reliability of system operation. Third, the equipment has numerous components, a complex structure, and high cost. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a waste gas treatment device for feed additive production. The purpose is to eliminate the need for filters, avoid clogging, and improve reliability. It employs a water washing method to treat the waste gas, simultaneously removing dust and odors, and automatically discharging settled dust particles, thereby improving the purification effect and efficiency. Furthermore, the equipment has a simple structure and low cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for feed additive production, comprising a waste gas pipeline connected to a fan, the output end of the fan connected to an inlet pipe, the other end of the inlet pipe connected to the bottom of a tank, and an exhaust pipe at the top of the tank; a drain pipe at the bottom of the tank; a control valve on the drain pipe, the end of which is connected to a storage tank; an outlet pipe connected to the storage tank, the outlet pipe connected to a pressure pump, the outlet end of the pressure pump connected to a spray pipe fixed in the tank via a pipe; a partition is provided below the spray pipe in the tank; multiple partitions are provided, spaced vertically, and their peripheries are sealed and fixed to the inner wall of the tank; multiple densely distributed pits are provided on the partitions; a small ball is placed in each pit, and a through hole is provided at the bottom of the pit; the density of the small ball is less than the density of the cleaning liquid sprayed from the spray pipe, so that the small ball can float when the pit is filled with the cleaning liquid.

[0006] As a further optimization, the pit is a conical pit, with the larger end of the conical pit facing upwards.

[0007] As a further optimization, there are multiple nozzles, which are distributed vertically at intervals; and multiple spaced baffles are provided below each nozzle.

[0008] As a further optimization, the distance between the lower end of the recess and the lower partition between two adjacent partitions is smaller than the diameter of the ball.

[0009] As a further optimization, the bottom of the tank is designed to be conical, and the drain pipe is installed at the bottom of the conical shape.

[0010] As a further optimization, the lower end of the drain pipe is provided with a conical opening, and the lower end of the conical opening is connected to the storage tank through a pipe; the control valve includes a plug inserted into the conical opening; the upper end of the plug is connected to a pull rope, and the upper end of the pull rope is connected to a float.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this utility model uses water washing to treat waste gas, simultaneously cleaning away dust and odor in the waste gas, and the waste gas and cleaning liquid are fully combined, which improves the effect and efficiency of waste gas purification; no filter screen is used, avoiding clogging, ensuring high reliability, and the equipment has a simple structure and low cost. Attached Figure Description

[0012] Figure 1 This is a schematic plan view of the overall structure of an embodiment of the present utility model.

[0013] Figure 2 This is a three-dimensional structural diagram of the ball in the depression according to an embodiment of the present invention.

[0014] The correspondence between the technical features in the figure and the reference numerals is as follows: exhaust pipe 1; fan 11; air inlet pipe 12; tank 2; exhaust pipe 21; drain pipe 22; nozzle 23; plug 24; pull rope 25; float 26; liquid storage layer 27; liquid storage tank 3; liquid outlet pipe 31; pressurizing pump 32; baffle 4; pit 41; small ball 42; through hole 43. Detailed Implementation

[0015] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model, and are not intended to limit the protection scope of this utility model.

[0016] Example: Please refer to Figure 1-2This utility model provides the following technical solution: a waste gas treatment device for feed additive production, including a waste gas pipeline 1, which is connected to a fan 11. The output end of the fan 11 is connected to an air inlet pipe 12, and the other end of the air inlet pipe 12 is connected to the bottom of a tank 2. An exhaust pipe 21 is provided on the top of the tank 2; so that the waste gas enters the tank 2 after being pressurized by the fan 11, and the cleaned gas is discharged from the exhaust pipe 21.

[0017] The bottom of the tank 2 is provided with a drain pipe 22; the drain pipe 22 is provided with a control valve, and its end is connected to the storage tank 3; so that the falling and precipitated dust and cleaning liquid are discharged from the drain pipe 22 together. The control valve can be at least an electric control valve, which is automatically opened periodically by program control.

[0018] The storage tank 3 is connected to an outlet pipe 31, which is connected to a pressure pump 32. The outlet end of the pressure pump 32 is connected to a spray pipe 23 fixed inside the tank body 2 via a pipe. Inside the tank body 2, a baffle 4 is provided below the spray pipe 23. There are multiple baffles 4, which are distributed vertically at intervals and are sealed and fixed to the inner wall of the tank body 2 around their perimeters. This allows the cleaning liquid to be reused, reducing costs. The pressure pump 32 increases the pressure of the spray pipe 23, causing the nozzle to spray atomized droplets, increasing the contact opportunity with the exhaust gas and improving the deodorization effect.

[0019] The partition plate 4 is provided with a plurality of densely distributed pits 41; a small ball 42 is placed in each pit 41, and a through hole 43 is provided at the bottom of the pit 41; the density of the small ball 42 is less than the density of the cleaning fluid sprayed from the nozzle 23, so that the small ball 42 can float when the pit 41 is filled with the cleaning fluid.

[0020] Regarding the working principle of the pit 41 and the ball 42, the ball 42 is in line contact with the inner wall of the pit 41, resulting in limited sealing. When the nozzle 23 continuously sprays out cleaning fluid, it is blocked by the ball 42, causing the flow rate of the pit 41 to be lower than the input flow rate. This eventually leads to the liquid level in the pit 41 rising. When the buoyancy is sufficient, the ball 42 floats up, opening the through hole 43. The cleaning fluid in the pit 41 is then quickly discharged through the through hole 43, rapidly reducing the buoyancy. The ball 42 descends, and the cleaning fluid flows downward, causing the ball 42 to re-contact the inner wall of the pit 41. This cycle repeats, causing the ball 42 to continuously bounce up and down in the pit 41 without leaving it.

[0021] The cleaning solution is a mixture containing a deodorizing agent. The deodorizing agent is a prior art product, and at least the deodorizing agent in the patent "A method for deodorizing waste gas based on plant deodorizing agent atomization technology" with publication number CN113750281A can be used.

[0022] In operation, firstly, the pressurizing pump 32 is turned on, causing the nozzle 23 to spray cleaning fluid, gradually filling the recesses 41 of the upper partition 4. The cleaning fluid falling from the upper layer fills the recesses 41 of each partition 4 in turn, finally settling at the bottom of the tank 2. The cleaning fluid is then periodically returned to the storage tank 3 by opening the control valve. Thus, the cleaning fluid flows sequentially through the storage tank 3, pressurizing pump 32, nozzle 23, and drain pipe 22 before returning to the storage tank 3, forming a cleaning fluid circulation system. Next, the blower 11 is turned on, introducing exhaust gas into the tank 2. The exhaust gas first passes through the bottom storage layer 27, undergoing initial cleaning. Dust, due to its high density, can be initially removed. However, at this stage, the exhaust gas is light, flows quickly, and has a short contact time with the cleaning fluid, making it difficult to remove odors. Then the exhaust gas continues to rise. Since the ball 42 is in line contact with the inner wall of the pit 41 and the sealing pressure is limited, the exhaust gas, after passing through the through hole 43 of the upper baffle 4, is sprayed upwards from the point where the ball 42 abuts against the inner wall of the pit 41, causing the cleaning liquid accumulated in the pit 41 to be sprayed out as well, forming an atomized zone of the cleaning liquid above the baffle 4. In this atomized zone, because the airflow ejected from the pit 41 is turbulent and irregular, the upward path of the airflow becomes winding and tortuous, thereby increasing the airflow's travel distance, increasing the chance of the exhaust gas and cleaning liquid combining, and enhancing the deodorization effect. Similarly, the airflow passes through the baffle 4 layer by layer, and the atomized zone is formed above each baffle 4, allowing the exhaust gas to be cleaned multiple times, greatly improving the reaction capability between the exhaust gas and the cleaning liquid, thereby significantly improving the cleaning and deodorization effect. At the same time, the exhaust gas is continuously and uninterruptedly cleaned within the tank 2, resulting in high cleaning and deodorization efficiency. Regarding the remaining dust in the airflow, this dust falls as it rises with the airflow, blocked by the baffle 4. Furthermore, the small ball 42 and the inner wall of the pit 41 form a line contact gap, creating a slit-type filter structure as the airflow passes through this gap. Each baffle 4 acts as a filter mechanism, preventing the dust from rising. Due to its own weight, the dust falls gradually and eventually settles at the bottom of the tank 2. Then, when the control valve is opened, it is discharged into the storage tank 3 along with the cleaning fluid, ultimately settling at the bottom of the storage tank 3. Thus, this device has the dual function of deodorizing and cleaning dust.

[0023] Even if the exhaust gas discharged from the exhaust pipe 21 contains a small amount of dust, it is difficult for it to float and spread in the air due to water washing, thus posing little pollution. The exhaust gas is also fully reduced and is not polluting, thus the device achieves the effect of exhaust gas purification. Furthermore, since the small ball 42 can float, it can automatically unclog blocked through holes 43, ensuring that even with a large amount of dust, the through holes 43 will not be blocked. The airflow will automatically choose the through hole 43 with the least resistance to rise, while the pit 41 above the through hole 43 with greater resistance will continuously accumulate cleaning fluid, eventually flushing the pit 41 and through hole 43, achieving an automatic unblocking effect. The pressure pump 32 draws the clarified cleaning fluid from the upper part of the storage tank 3 to prevent dirt from clogging the nozzle.

[0024] Preferably, the recess 41 is a conical recess with the larger end facing upwards. This increases the amount of liquid accumulated in the recess 41 and ensures that the ball 42 is in line contact with the inner wall of the recess 41.

[0025] To improve the cleaning effect, multiple nozzles 23 are arranged vertically at intervals; each nozzle 23 is provided with multiple spaced-apart baffles 4 below it. Each nozzle 23 and its corresponding baffle 4 constitute a cleaning unit, with multiple nozzles 23 corresponding to multiple cleaning units, thus improving the cleaning effect. Simultaneously, the cleaning fluid supply to each cleaning unit is independent, significantly increasing the amount of cleaning fluid supplied. This increases the circulation flow rate of the cleaning fluid circulation system, further enhancing the cleaning effect and efficiency.

[0026] To improve reliability, when the ball 42 falls, it can accurately return to the recess 41. Between two adjacent partitions 4, the distance between the lower end of the recess 41 and the partition 4 below it is smaller than the diameter of the ball 42. This ensures that the floating ball 42 remains in the recess 41 when it reaches its upper limit position.

[0027] To facilitate the collection of dust into the drain pipe 22 during the sedimentation process, the bottom of the tank 2 is designed in a conical shape, and the drain pipe 22 is located at the bottom of the cone. The settled dust is more easily discharged from the drain pipe 22, improving sewage discharge efficiency.

[0028] Preferably, the control valve in this embodiment adopts an automatic liquid level mode. The lower end of the drain pipe 22 is provided with a conical opening, and the lower end of the conical opening is connected to the storage tank 3 through a pipe. The control valve includes a plug 24 inserted into the conical opening. The upper end of the plug 24 is connected to a pull rope 25, and the upper end of the pull rope 25 is connected to a float 26. This allows the float 26 to pull up the plug 24 via the pull rope 25 when the storage layer 27 reaches a certain height, discharging the dirt. When the discharge reaches a certain level, the liquid level of the storage layer 27 drops, the buoyancy of the float 26 decreases, and the plug 24 automatically resets. This achieves the effect of periodically and automatically opening the drain pipe 22 without the need for sensors or additional equipment. The opening and closing of the drain pipe 22 is automatically controlled by the rise in liquid level, requiring no manual intervention.

[0029] The advantages of this embodiment are that it uses water washing to treat the exhaust gas, simultaneously cleaning away dust and odors in the exhaust gas. The exhaust gas and the cleaning liquid are fully combined, which improves the effect and efficiency of exhaust gas purification. It does not use a filter screen, avoiding clogging, and has high reliability. In addition, the equipment has a simple structure and low cost.

[0030] The parts of this utility model not described in detail are prior art; for those skilled in the art, the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device for feed additive production, comprising a waste gas pipeline (1) connected to a fan (11), the output end of the fan (11) connected to an inlet pipe (12), the other end of the inlet pipe (12) connected to the bottom of a tank (2), and an exhaust pipe (21) provided on the top of the tank (2); characterized in that: The tank (2) is provided with a drain pipe (22) at the bottom; the drain pipe (22) is provided with a control valve, and its end is connected to the storage tank (3); the storage tank (3) is connected with an outlet pipe (31), the outlet pipe (31) is connected to a pressure pump (32), and the outlet end of the pressure pump (32) is connected to a spray pipe (23) fixed in the tank (2) through a pipe; in the tank (2), a partition (4) is provided below the spray pipe (23); there are multiple partitions (4), which are distributed at intervals above and below, and their periphery is sealed and fixed to the inner wall of the tank (2); The partition (4) is provided with a plurality of recesses (41); a small ball (42) is placed in each recess (41), and a through hole (43) is provided at the bottom of the recess (41); the density of the small ball (42) is less than the density of the cleaning fluid sprayed by the nozzle (23), so that the small ball (42) can float when the recess (41) is filled with the cleaning fluid.

2. The feed additive production device for waste gas treatment according to claim 1, characterized in that: The pit (41) is a cone-shaped pit with the larger end of the cone facing upwards.

3. The feed additive production device according to claim 1 for waste gas treatment, characterized in that: There are multiple nozzles (23) arranged at intervals; each nozzle (23) has multiple baffles (4) below it.

4. The feed additive production device according to claim 3 for use in waste gas treatment, characterized in that: Between two adjacent partitions (4), the distance between the lower end of the recess (41) and the partition (4) below is less than the diameter of the ball (42).

5. The feed additive production device according to claim 1 for waste gas treatment, characterized in that: The bottom of the tank (2) is conical, and the drain pipe (22) is provided at the bottom of the conical shape.

6. The feed additive production device according to claim 5 for waste gas treatment, characterized in that: The lower end of the drain pipe (22) is provided with a conical opening, and the lower end of the conical opening is connected to the storage tank (3) through a pipe; the control valve includes a plug (24) inserted into the conical opening; the upper end of the plug (24) is connected to a pull rope (25), and the upper end of the pull rope (25) is connected to a float (26).

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