Polymerization section tail gas treatment equipment for water purifying agent production

Abstract

The invention discloses polymerization section tail gas treatment equipment for producing a water purifying agent, and relates to the technical field of waste gas treatment, the polymerization section tail gas treatment equipment comprises a tail gas collecting device connected with an exhaust port of a polymerization section and used for collecting tail gas of pollutants, the tail gas collecting device comprises a connecting seat, a tail gas treatment assembly and an exhaust pipe, and the tail gas treatment assembly and the exhaust pipe are arranged on the connecting seat; the connecting seat is connected with an exhaust port of a polymerization section, the tail gas treatment assembly purifies gas in the exhaust port, and finally the tail gas treatment assembly exhausts the treated gas through the exhaust pipe; the spraying tower is communicated with the exhaust pipe, a spraying assembly and a filler layer are arranged on the spraying tower, the spraying tower is used for absorbing soluble pollutants in tail gas through spraying liquid, and dynamic gas collection is achieved by adopting the multi-cavity piston type collecting device and cooperating with a pressure self-adaptive speed regulating system.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a tail gas treatment device for the polymerization section of a water purification agent production process. Background Technology

[0002] Water purification agents are chemical agents used to purify water. They mainly remove pollutants from water through adsorption, sedimentation, flocculation, and other processes. Common water purification agents include polyaluminum chloride, polyaluminum ferric chloride, and polyferric sulfate. These polymers need to undergo polymerization reactions in containers during manufacturing. During the polymerization process, gaseous byproducts are usually generated. Most of these gases are harmful and therefore need to be treated as waste gases.

[0003] The reaction vessel for polymerization is usually called a polymerization tank. In order for the polymerization reaction to proceed, the polymerization tank is often sealed to provide a high temperature and high pressure environment for the reaction. The waste gas generated during the reaction can be discharged naturally under the action of high pressure. However, when the pressure inside the polymerization tank is low, the waste gas will no longer be discharged. Therefore, waste gas with a volume close to that of the polymerization tank will eventually remain in the polymerization tank. This waste gas will still cause great harm or safety hazards when the polymerization tank is opened. Therefore, a polymerization tank waste gas treatment device is needed to solve the problem.

[0004] Chinese Patent Publication No. CN119500016A discloses a waste gas treatment device for polymerization tanks in water purification agent production, including an exhaust hood and a drive assembly. A polymerization tank is slidably connected to the exhaust hood. The drive assembly includes a support frame, which is fixedly connected to the exhaust hood. A lifting plate is slidably connected to the support frame, and a telescopic motor is fixedly connected to the support frame. A support frame is fixedly connected to the polymerization tank, and a gas cylinder is fixedly connected inside the support frame. An exhaust assembly is installed inside the exhaust hood, including a circular ring plate slidably connected to the inside of the exhaust hood. Three fixed rods are slidably connected to the circular ring plate, and a circular plate is fixedly connected to all three fixed rods. A pulling assembly is installed on the exhaust hood, and an adjusting assembly is installed inside the exhaust tank. This invention can discharge and treat the waste gas in the polymerization tank after the polymerization reaction is completed, ensuring that no waste gas remains in the polymerization tank or only a very small amount of waste gas remains, thus avoiding the problem of waste gas pollution after the polymerization tank is opened.

[0005] However, the existing technology still has the following problems: the traction component has poor stability and cannot be adjusted independently, and the waste gas treatment efficiency in the polymerization section is low, which cannot meet the requirements for rapid waste gas treatment. Summary of the Invention

[0006] The purpose of this invention is to provide a tail gas treatment device for the polymerization section in the production of water purification agents, so as to solve the problems mentioned in the background art.

[0007] The technical solution of this invention is: a tail gas treatment device for the polymerization section in water purification agent production, comprising:

[0008] An exhaust gas collection device is connected to the exhaust port of the polymerization section and is used to collect exhaust gas containing pollutants. The exhaust gas collection device includes a connecting seat, an exhaust gas treatment component and an exhaust pipe installed on the connecting seat. The connecting seat is connected to the exhaust port of the polymerization section. The exhaust gas treatment component purifies the gas in the exhaust port. Finally, the exhaust gas treatment component discharges the treated gas through the exhaust pipe.

[0009] The spray tower is connected to the exhaust pipe. The spray tower is equipped with spray components and a packing layer, which are used to absorb soluble pollutants in the exhaust gas through spray liquid.

[0010] Preferably, the exhaust gas treatment assembly includes a housing, the bottom of which is fixedly connected to the top of the connecting seat, and there is an air passage gap between the bottom of the housing and the top of the connecting seat. A drive unit is fixedly connected to the housing, and multiple treatment chambers are provided on the top of the housing. A piston rod is movably connected to each treatment chamber. The drive unit is used to control the piston rod to move linearly back and forth. A piston head is fixedly connected to the end of each piston rod. A communication port is opened at the bottom of each treatment chamber, and two outlets are symmetrically opened at the top of each treatment chamber. A treatment sleeve is provided on each outlet, and the treatment sleeve is connected to the multiple outlets. A filter element is provided inside the treatment sleeve for filtering the exhaust gas. The top of the treatment sleeve is connected to the exhaust pipe, and a one-way valve is provided on the outlet.

[0011] Preferably, a sealing block is threaded onto the side wall of the processing sleeve for replacing the filter element.

[0012] Preferably, the drive unit includes a drive motor, a drive gear is fixedly connected to the output shaft of the drive motor, and a plurality of driven gears are rotatably connected to the top of the housing. Each driven gear is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to a piston rod.

[0013] Preferably, the spray assembly includes multiple atomizing heads and water pipes, the water pipes being connected to the multiple atomizing heads, and the multiple atomizing heads being mounted on the spray tower.

[0014] Preferably, the connecting seat has an inlet, and a sealing gasket ring is provided on the outer peripheral wall of the connecting seat.

[0015] Preferably, it also includes a speed control module, which is electrically connected to the drive motor and is used to adjust the movement frequency of the piston rod.

[0016] Preferably, it also includes a pressure sensor and a controller, wherein the pressure sensor is installed at the exhaust port of the polymerization section for real-time detection of gas pressure;

[0017] The controller is connected to the pressure sensor and the speed control module respectively, and is configured as follows:

[0018] The target frequency is calculated based on the gas pressure value detected by the pressure sensor;

[0019] The speed of the drive motor is adjusted by the speed control module so that the reciprocating frequency of the piston rod matches the target frequency.

[0020] Preferably, the filter element is an activated carbon fiber layer.

[0021] Preferably, the bottom of the spray tower is equipped with a circulation pump for transporting the spray liquid to the wastewater treatment system.

[0022] This invention provides an improved tail gas treatment device for the polymerization section of a water purification agent production process, which has the following improvements and advantages compared with the prior art:

[0023] Firstly, in this invention, the piston head pushes the waste gas in the treatment chamber back and forth and simultaneously squeezes the waste gas, thereby increasing the contact force between the waste gas and the filter element in the treatment sleeve, improving the effect of waste gas filtration and cleaning, and enhancing the efficiency of waste gas passing through the filter element, thus improving the overall efficiency of the waste gas treatment process.

[0024] Secondly, during the process of improving the efficiency of waste gas treatment, the waste gas in the polymerization section can be adsorbed in real time and enter the treatment chamber. That is, the treatment chamber can achieve the effect of both absorbing and venting the waste gas. The absorption function can effectively avoid residual waste gas in the polymerization tank and improve the safety of the polymerization tank.

[0025] Thirdly, in this invention, the pressure at the exhaust port is monitored in real time by a pressure sensor, the controller calculates the target frequency, and the speed of the drive motor is adjusted by the speed regulation module to match the reciprocating frequency of the piston rod with the target frequency. This avoids excessive exhaust gas pressure in the polymerization section. For example, when the pressure exceeds a specified value, the reciprocating frequency of the piston rod is high, while when the pressure exceeds a specified value, the frequency is at a normal frequency. The speed of the drive motor is dynamically controlled to reduce energy consumption. At the same time, the speed of the drive motor can be actively adjusted according to the exhaust gas treatment time to achieve maximum power and fastest speed for exhaust gas treatment, so as to meet the requirements of rapid exhaust gas treatment under special circumstances.

[0026] Fourthly, this invention employs a multi-chamber piston-type collection device, combined with a pressure adaptive speed regulation system, to achieve dynamic gas collection and improve waste gas treatment efficiency.

[0027] Fifthly, the modular design of the processing sleeve structure in this invention enables quick replacement of the filter element, and the one-way valve allows the exhaust gas to move from the processing chamber to the processing sleeve, thereby ensuring that the piston head can perform both intake and exhaust operations and guaranteeing operational stability.

[0028] Sixth: The bottom of the spray tower 4 of this invention is equipped with a circulation pump, which is used to transport the spray liquid to the wastewater treatment system, saving water resources and realizing the recycling of water resources. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a first-view schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the connector of the present invention;

[0032] Figure 3 This is a schematic plan view of the overall structure of the present invention;

[0033] Figure 4 This is a cross-sectional schematic diagram of the exhaust gas treatment component of the present invention;

[0034] Figure 5 This is a schematic cross-sectional view of the processing sleeve of the present invention;

[0035] Figure 6 This is a top view schematic diagram of the drive gear and driven gear of the present invention;

[0036] Figure 7 for Figure 4 A partial structural diagram.

[0037] In the diagram: 1. Connecting seat; 101. Inlet; 102. Sealing gasket ring; 2. Exhaust pipe; 3. Exhaust gas treatment assembly; 301. Treatment chamber; 302. Piston rod; 303. Piston head; 304. Connecting port; 305. Outlet; 306. Treatment sleeve; 307. Filter element; 308. One-way valve; 309. Blocking block; 4. Spray tower; 401. Atomizing head; 402. Water pipe; 5. Drive motor; 501. Drive gear; 502. Driven gear. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0040] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] like Figures 1-7 As shown, the present invention provides a tail gas treatment device for the polymerization section of a water purification agent production process, comprising:

[0044] The exhaust gas collection device is connected to the exhaust port of the polymerization section and is used to collect the exhaust gas containing pollutants. The exhaust gas collection device includes a connecting seat 1, an exhaust gas treatment component 3 and an exhaust pipe 2 installed on the connecting seat 1. The connecting seat 1 is connected to the exhaust port of the polymerization section. The exhaust gas treatment component 3 purifies the gas in the exhaust port. Finally, the exhaust gas treatment component 3 discharges the treated gas through the exhaust pipe 2.

[0045] The spray tower 4 is connected to the exhaust pipe 2. The spray tower 4 is equipped with a spray assembly and a packing layer, which are used to absorb soluble pollutants in the exhaust gas through the spray liquid.

[0046] The exhaust gas treatment assembly 3 includes a housing, the bottom of which is fixedly connected to the top of the connecting seat 1, with an air passage gap between the bottom of the housing and the top of the connecting seat 1. A drive unit is fixedly connected to the housing, and multiple treatment chambers 301 are provided on the top of the housing. A piston rod 302 is movably connected to each treatment chamber 301. The drive unit controls the piston rod 302 to perform linear reciprocating movement. A piston head 303 is fixedly connected to the end of each piston rod 302. A communication port 304 is provided at the bottom of each treatment chamber 301. The part has two symmetrical outlets 305, and a treatment sleeve 306 is provided on the outlet 305. The treatment sleeve 306 is connected to multiple outlets 305, and a filter element 307 is provided inside the treatment sleeve 306. The filter element 307 is used to filter the exhaust gas. The top of the treatment sleeve 306 is connected to the exhaust pipe 2. A one-way valve 308 is provided on the outlet 305. The one-way valve 308 allows the exhaust gas to move from the treatment chamber 301 to the treatment sleeve 306, thereby ensuring that the piston head 303 can perform intake and exhaust operations and ensuring the stability of operation.

[0047] Specifically, the exhaust gas moves along the following path:

[0048] Polymerization section - Connecting port 304 - Processing chamber 301 - Outlet 305 - Processing sleeve 306 - Spray tower 4 - Discharge;

[0049] The drive unit controls multiple piston rods 302 to move linearly and reciprocally, thereby driving the piston head 303 to move linearly and reciprocally. The piston head 303 pushes the exhaust gas in the treatment chamber 301 back and forth and squeezes the exhaust gas at the same time, which increases the contact force between the exhaust gas and the filter element 307 in the treatment sleeve 306, improves the exhaust gas filtration and cleaning effect, and enhances the efficiency of the exhaust gas passing through the filter element 307, thereby improving the overall efficiency of the exhaust gas treatment process.

[0050] During the process of improving the efficiency of waste gas treatment, the waste gas in the polymerization section can be adsorbed in real time and enter the treatment chamber 301. That is, the treatment chamber 301 can achieve the effect of absorbing and venting waste gas. The function of absorbing can effectively avoid residual waste gas in the polymerization tank and improve the safety of the polymerization tank.

[0051] A sealing block 309 is threaded onto the side wall of the treatment sleeve 306. The sealing block 309 can be rotated off for replacing or cleaning the filter element 307, improving convenience.

[0052] The drive unit includes a drive motor 5, a drive gear 501 fixedly connected to the output shaft of the drive motor 5, and multiple driven gears 502 rotatably connected to the top of the housing. Each driven gear 502 is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the piston rod 302. When the drive motor 5 rotates, it drives the drive gear 501 to rotate, and the drive gear 501 drives the multiple driven gears 502 to rotate. Through the rotation of the multiple driven gears 502, the piston rod 302 reciprocates, thereby realizing the intake and exhaust functions of the piston rod 302.

[0053] The spray assembly includes multiple atomizing heads 401 and water pipes 402. The water pipes 402 are connected to the multiple atomizing heads 401. The multiple atomizing heads 401 are installed on the spray tower 4. After the exhaust gas is treated by the filter element 307 in the treatment sleeve 306, the exhaust gas enters the spray tower 4 through the exhaust pipe 2. The spray liquid forms a uniform water curtain through the atomizing heads 401, which works in conjunction with the packing layer to purify the gas. The water pipes 402 are connected to an external water pump to provide water for the multiple atomizing heads 401.

[0054] The connecting seat 1 has an inlet 101, through which the exhaust gas from the polymerization section enters. A sealing gasket ring 102 is provided on the outer peripheral wall of the connecting seat 1 to increase the sealing performance of the connection between the connecting seat 1 and the polymerization section.

[0055] It also includes a speed control module, which is electrically connected to the drive motor 5 and is used to adjust the movement frequency of the piston rod 302;

[0056] It also includes a pressure sensor and a controller. The pressure sensor is installed at the exhaust port of the polymerization section to detect the gas pressure in real time.

[0057] The controller is connected to the pressure sensor and the speed control module respectively, and is configured as follows:

[0058] The target frequency is calculated based on the gas pressure value detected by the pressure sensor;

[0059] The speed of the drive motor 5 is adjusted by the speed control module so that the reciprocating frequency of the piston rod 302 matches the target frequency.

[0060] The controller monitors the exhaust port pressure in real time using a pressure sensor, calculates the target frequency, and adjusts the speed of the drive motor 5 via a speed control module to match the reciprocating frequency of the piston rod 302 with the target frequency. This prevents excessive exhaust gas pressure in the polymerization section. For example, when the pressure exceeds a specified value, the reciprocating frequency of the piston rod 302 is high; otherwise, the frequency is at a normal level. The speed of the drive motor 5 is dynamically controlled to reduce energy consumption. At the same time, the speed of the drive motor 5 can be actively adjusted according to the exhaust gas treatment time to achieve maximum power and fastest speed for exhaust gas treatment, thus meeting the requirements for rapid exhaust gas treatment under special circumstances.

[0061] The filter element 307 has an activated carbon fiber layer, which improves the waste gas treatment effect.

[0062] The bottom of the spray tower 4 is equipped with a circulation pump, which is used to transport the spray liquid to the wastewater treatment system, saving water resources and realizing the recycling of water resources.

[0063] Working principle:

[0064] The pressure sensor monitors the exhaust port pressure in real time;

[0065] The speed control module adjusts the speed of the drive motor 5. The drive motor 5 rotates, which drives the drive gear 501 to rotate. The drive gear 501 drives multiple driven gears 502 to rotate. Through the rotation of the multiple driven gears 502, the piston rod 302 reciprocates, thereby the piston head 303 pushes the waste gas in the treatment chamber 301 back and forth and squeezes the waste gas at the same time. This increases the contact force between the waste gas and the filter element 307 in the treatment sleeve 306, improves the waste gas filtration and cleaning effect, and enhances the efficiency of the waste gas passing through the filter element 307, thereby improving the overall efficiency of the waste gas treatment process. During the period of improving the waste gas treatment efficiency, the waste gas in the polymerization section environment can be adsorbed in real time and enter the treatment chamber 301. That is, the treatment chamber 301 can achieve the effect of suction and exhaust of waste gas. The suction function can effectively avoid residual waste gas in the polymerization tank and improve the safety of the polymerization tank.

[0066] After the exhaust gas is treated by the filter element 307 in the treatment unit 306, the exhaust gas enters the spray tower 4 through the exhaust pipe 2. The spray liquid forms a uniform water curtain through the atomizing head 401, which works in synergy with the packing layer to purify the gas. The water pipe 402 is connected to an external water pump to provide water for multiple atomizing heads 401.

[0067] The bottom of the spray tower 4 is equipped with a circulation pump, which is used to transport the spray liquid to the wastewater treatment system, saving water resources and realizing the recycling of water resources;

[0068] This invention employs a multi-chamber piston-type collection device, combined with a pressure adaptive speed regulation system, to achieve dynamic gas collection.

[0069] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tail gas treatment device for the polymerization section in the production of water purification agents, characterized in that, include: The exhaust gas collection device is connected to the exhaust port of the polymerization section and is used to collect exhaust gas containing pollutants. The exhaust gas collection device includes a connecting seat (1), an exhaust gas treatment component (3) and an exhaust pipe (2) installed on the connecting seat (1). The connecting seat (1) is connected to the exhaust port of the polymerization section. The exhaust gas treatment component (3) purifies the gas in the exhaust port. Finally, the exhaust gas treatment component (3) discharges the treated gas through the exhaust pipe (2). The spray tower (4) is connected to the exhaust pipe (2). The spray tower (4) is equipped with a spray assembly and a packing layer for absorbing soluble pollutants in the exhaust gas through the spray liquid.

2. The tail gas treatment equipment for the polymerization section of a water purification agent production process according to claim 1, characterized in that: The exhaust gas treatment assembly (3) includes a housing, the bottom of which is fixedly connected to the top of the connecting seat (1), and there is an air passage gap between the bottom of the housing and the top of the connecting seat (1). A drive unit is fixedly connected to the housing, and a plurality of treatment chambers (301) are provided on the top of the housing. A piston rod (302) is movably connected in each treatment chamber (301). The drive unit is used to control the piston rod (302) to perform linear reciprocating movement. A piston head (303) is fixedly connected to the end of each piston rod (302). The bottom of each processing chamber (301) is provided with a communication port (304), and the top of the processing chamber (301) is symmetrically provided with two outlets (305). A processing sleeve (306) is provided on each outlet (305). The processing sleeve (306) is connected to multiple outlets (305), and a filter element (307) is provided inside the processing sleeve (306). The filter element (307) is used to filter the exhaust gas. The top of the processing sleeve (306) is connected to the exhaust pipe (2), and a one-way valve (308) is provided on each outlet (305).

3. The tail gas treatment equipment for the polymerization section in water purification agent production according to claim 2, characterized in that: A sealing block (309) is threaded onto the side wall of the processing sleeve (306) for replacing the filter element (307).

4. The tail gas treatment equipment for the polymerization section in water purification agent production according to claim 2, characterized in that: The drive unit includes a drive motor (5), a drive gear (501) is fixedly connected to the output shaft of the drive motor (5), and a plurality of driven gears (502) are rotatably connected to the top of the housing. Each driven gear (502) is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the piston rod (302).

5. The tail gas treatment equipment for the polymerization section in water purification agent production according to claim 1, characterized in that: The spray assembly includes multiple atomizing heads (401) and water pipes (402), the water pipes (402) being connected to the multiple atomizing heads (401), and the multiple atomizing heads (401) being mounted on the spray tower (4).

6. The tail gas treatment equipment for the polymerization section of water purification agent production according to claim 1, characterized in that: The connecting seat (1) has an inlet (101) and a sealing gasket (102) is provided on the outer peripheral wall of the connecting seat (1).

7. The tail gas treatment equipment for the polymerization section of a water purification agent production process according to claim 1, characterized in that: It also includes a speed control module, which is electrically connected to the drive motor (5) and is used to adjust the movement frequency of the piston rod (302).

8. The tail gas treatment equipment for the polymerization section of a water purification agent production process according to claim 2, characterized in that: It also includes a pressure sensor and a controller. The pressure sensor is installed at the exhaust port of the polymerization section to detect the gas pressure in real time. The controller is connected to the pressure sensor and the speed control module respectively, and is configured as follows: The target frequency is calculated based on the gas pressure value detected by the pressure sensor; The speed of the drive motor (5) is adjusted by the speed control module so that the reciprocating frequency of the piston rod (302) matches the target frequency.

9. The tail gas treatment equipment for the polymerization section of a water purification agent production process according to claim 2, characterized in that: The filter element (307) is an activated carbon fiber layer.

10. The tail gas treatment equipment for the polymerization section of a water purification agent production process according to claim 1, characterized in that: The bottom of the spray tower (4) is equipped with a circulation pump for transporting the spray liquid to the wastewater treatment system.

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