Pretreatment device for high-temperature dust-containing waste gas generated by kneading machine

Abstract

The utility model discloses a pretreatment device for high-temperature dust-containing waste gas generated by a kneading machine, which relates to the field of waste gas treatment and comprises a rack, a circulating water tank, a gas inlet tower and a gas exhaust tower, a circulating pump is arranged on the rack, a water outlet end of the circulating pump is connected with a main water pipe, and a first spiral nozzle is arranged at the bottom of one end of the main water pipe. The other end of the main water pipe is connected with a water distribution pipe, and a second spiral nozzle is arranged on the water distribution pipe. The dynamic wave tower, cooling measures and waste gas purification equipment are integrally designed, the structure is compact, the occupied area is small, installation is convenient, the spiral nozzles are arranged in the gas inlet tower and the gas exhaust tower respectively, waste gas reversely enters the gas inlet tower, and high-temperature dust-containing waste gas is cooled through the installed nozzles; the pretreated dust-containing waste gas enters a spray tower containing a filler layer to be purified, and due to the front pretreatment process, the problems of blockage and high-temperature water vapor of a treatment system are solved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment, and in particular to a pretreatment device for high-temperature dusty waste gas generated by a kneader. Background Technology

[0002] A kneader is an ideal piece of equipment for kneading, mixing, vulcanizing, and polymerizing high-viscosity, elasto-plastic materials. Kneaders can be used to produce silicone rubber, hot melt adhesives, sealants, food-grade gum bases, and pharmaceutical preparations. A kneader is a special mixing and stirring device, most commonly employing two Σ-blades arranged in a parallel, tangential, differential speed configuration. One blade travels at a high speed, while the other travels at a low speed, generating shear force. The different blade speeds allow the materials to be rapidly sheared, resulting in a uniform mixture. However, the heating process during mixing produces a large amount of harmful gases.

[0003] The waste gas mainly includes dust components such as carbon black, rubber particles, and rubber powder; oily waste gases such as aromatic oils; non-methane total hydrocarbons; and inorganic gases such as benzene, toluene, methanol, and H2S. These multi-component waste gases pose serious health hazards to workers; direct discharge into the atmosphere will affect the surrounding environment.

[0004] Existing technologies, such as those with authorization announcement numbers CN210699532 U and CN215311159 U, all disclose devices for treating exhaust gas from kneaders.

[0005] However, existing waste gas treatment equipment lacks cooling devices, and high temperatures can damage the internal structure or reduce efficiency. When the temperature of dust-laden gas is too high, the water film may evaporate and fail, affecting the dust removal effect, and the high-temperature environment may accelerate equipment corrosion. When the dust content in the gas exceeds 25%, dust easily clogs the filter bags or internal channels of the equipment, making cleaning difficult and potentially damaging the equipment. In addition, wet ash is highly sticky, easily clogging the ash hopper and requiring frequent maintenance. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pretreatment device for high-temperature dusty exhaust gas generated by a kneader, so as to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: a pretreatment device for high-temperature dusty exhaust gas generated by a kneader, comprising a frame, a circulating water tank at the top of the frame, an air inlet tower and an exhaust tower arranged on the left and right sides at the top of the frame, the air inlet tower being connected to the bottom of one side of the exhaust tower, the top of one side of the circulating water tank being connected to the exhaust tower, the exhaust tower having a packing layer and a demisting layer inside, a circulating pump being mounted on the frame, the inlet end of the circulating pump being connected to the circulating water tank, the outlet end of the circulating pump being connected to a main water pipe, one end of the main water pipe passing through the air inlet tower and extending to the middle of the exhaust tower, a first spiral nozzle being mounted at the bottom of the end of the main water pipe located inside the exhaust tower, the other end of the main water pipe being located inside the air inlet tower and connected to a water distribution pipe, the water distribution pipe having a second spiral nozzle mounted on it.

[0008] Preferably, the bottom of the circulating water tank is designed to be inclined, and a limit adjustment overflow pipe is provided at the top of the circulating water tank. One end of the limit adjustment overflow pipe extends out of the bottom of one side of the circulating water tank, and a drain valve is connected to the bottom of the extended end.

[0009] Preferably, a water replenishment float controller is provided on the top side of the circulating water tank.

[0010] Preferably, a stainless steel glass tube liquid level display device is provided on the top of the other side of the circulating water tank.

[0011] Preferably, at least two first spiral nozzles are provided, and the first spiral nozzles spray downwards.

[0012] Preferably, at least one second spiral nozzle is provided, and the second spiral nozzle sprays upward.

[0013] Preferably, the filler layer is located below the first spiral nozzle, and the demister layer is located above the first spiral nozzle.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model integrates the power wave tower, cooling measures, and exhaust gas purification equipment into a single design. It has a compact structure, small footprint, is easy to install, simple to operate, and has an attractive appearance.

[0016] 2. This utility model has spiral nozzles installed inside the air intake tower and the exhaust tower respectively. The exhaust gas enters the air intake tower in reverse. The high-temperature dusty exhaust gas is cooled by the installed nozzles. After cooling, some of the particles enter the circulating water tank by gravity. The pre-treated dusty exhaust gas enters the spray tower with the packing layer for purification. Due to the pre-treatment process, the blockage of the treatment system and the problem of high temperature and water vapor are reduced, which greatly reduces the frequency of cleaning and maintenance and improves the service life of the equipment.

[0017] 3. This utility model automatically discharges excess water from the circulating water tank via a limit-adjusting overflow pipe, facilitating control of the circulating water tank level. Furthermore, the sloping drainage design of the circulating water tank facilitates cleaning and timely removal of particulate matter, reducing the risk of system blockage and contamination. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the waste gas pretreatment device of this utility model.

[0019] The attached diagram is labeled as follows: 1. Frame; 2. Circulating water tank; 3. Air inlet tower; 4. Exhaust tower; 5. Circulating pump; 6. Main water pipe; 7. Branch water pipe; 8. First spiral nozzle; 9. Second spiral nozzle; 10. Packing layer; 11. Demisting layer; 12. Limit adjustment overflow pipe; 13. Water replenishment float controller; 14. Stainless steel glass tube liquid level display device; 15. Drain valve. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0021] This utility model provides a pretreatment device for high-temperature dusty waste gas generated by a kneader, such as... Figure 1 As shown, the device includes a frame 1, a circulating water tank 2 on the top of the frame 1, and an air intake tower 3 and an exhaust tower 4 arranged on the left and right sides of the top of the frame 1. The air intake tower 3 is connected to the bottom of one side of the exhaust tower 4. The top of one side of the circulating water tank 2 is connected to the exhaust tower 4. The exhaust tower 4 is equipped with a packing layer 10 and a demisting layer 11. A circulating pump 5 is installed on the frame 1. The water inlet of the circulating pump 5 is connected to the circulating water tank 2. The water outlet of the circulating pump 5 is connected to a main water pipe 6. One end of the main water pipe 6 passes through the air intake tower 3 and extends to the middle of the exhaust tower 4. A first spiral nozzle 8 is installed at the bottom of the end of the main water pipe 6 located inside the exhaust tower 4. The other end of the main water pipe 6 is located inside the air intake tower 3 and connected to a water distribution pipe 7. A second spiral nozzle 9 is installed on the water distribution pipe 7.

[0022] The power wave tower, cooling measures, and exhaust gas purification equipment are integrated into a single design, resulting in a compact structure, small footprint, easy installation, simple operation, and attractive appearance.

[0023] Spiral nozzles are installed inside the intake tower 3 and the exhaust tower 4 respectively. The exhaust gas enters the intake tower 3 in reverse. The high-temperature dusty exhaust gas is cooled by the installed nozzles. After cooling, some of the particles enter the circulating water tank by gravity. The pre-treated dusty exhaust gas enters the spray tower with the packing layer for purification. Due to the pre-treatment process, the blockage of the treatment system and the problem of high temperature and water vapor are reduced, which greatly reduces the frequency of cleaning and maintenance and improves the service life of the equipment.

[0024] In this embodiment, the bottom of the circulating water tank 2 is designed with an incline. A limit-adjustment overflow pipe 12 is installed at the top of the circulating water tank 2. One end of the limit-adjustment overflow pipe 12 extends out from the bottom of one side of the circulating water tank 2, and a drain valve 15 is connected to the bottom of the extended end. Initially, the limit-adjustment overflow pipe 12 is flush with the liquid level inside the circulating water tank 2. If too much water enters, the liquid is automatically discharged through the limit-adjustment overflow pipe 12, preventing excessive liquid inside the circulating water tank 2 and facilitating control of the circulating water tank's liquid level. The inclined drainage method of the circulating water tank 2 facilitates drainage and cleaning, allowing for timely removal of particulate matter from the circulating water tank and reducing the risk of system blockage and contamination.

[0025] In this embodiment, a water replenishment float controller 13 is provided on the top side of the circulating water tank 2. The water level in the circulating water tank 2 is monitored in real time by the water float controller 13, and liquid replenishment treatment is performed.

[0026] In this embodiment, a stainless steel glass tube liquid level display device 14 is provided on the top of the other side of the circulating water tank 2, so that the staff can directly observe the water level inside the circulating water tank 2.

[0027] In this embodiment, at least two first spiral nozzles 8 are provided, and the first spiral nozzles 8 spray downwards. The exhaust gas entering from the intake tower 3 enters the bottom of the exhaust tower 4 and floats upwards. The first spiral nozzles 8 spray downwards directly opposite the exhaust gas, so that the particles in the exhaust gas collide with the sprayed liquid, causing the particles to settle and improving the spraying effect on the exhaust gas.

[0028] In this embodiment, at least one second spiral nozzle 9 is provided, and the second spiral nozzle 9 sprays upwards. The second spiral nozzle 9 sprays downwards and upwards directly opposite the exhaust gas entering the air intake tower 3, so that the particles in the exhaust gas collide with the sprayed liquid, causing the particles to settle and improving the spraying effect on the exhaust gas.

[0029] In this embodiment, the filler layer 10 is located below the first spiral nozzle 8, and the demisting layer 11 is located above the first spiral nozzle 8.

[0030] The working principle of this utility model is as follows: The circulating pump 5 sprays the water inside the circulating water tank 2 into the air intake tower 3 and the exhaust tower 4 respectively. The exhaust gas entering the air intake tower 3 first comes into contact with the sprayed water, which cools the high-temperature exhaust gas. At the same time, some particulate matter enters the circulating water tank 2 by gravity. The pre-treated dusty exhaust gas enters the spray tower with the packing layer for purification. After passing through the demisting layer, it is discharged. The water level inside the circulating water tank 2 is monitored in real time by the water replenishment float controller 13. When the water level inside the circulating water tank 2 drops to the set level, the water replenishment float controller 13 starts the automatic liquid replenishment process. If there is too much liquid, it is discharged from the limit adjustment overflow pipe 12. When particulate matter accumulates at the bottom of the circulating water tank 2, it can be discharged through the drain valve 15.

[0031] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A pretreatment device for high-temperature dusty exhaust gas generated by a kneader, comprising a frame (1), a circulating water tank (2) provided on the top of the frame (1), and an air intake tower (3) and an exhaust tower (4) arranged on the left and right sides on the top of the frame (1), characterized in that: The intake tower (3) is connected to the bottom of one side of the exhaust tower (4), and the top of one side of the circulating water tank (2) is connected to the exhaust tower (4). The exhaust tower (4) is provided with a packing layer (10) and a demisting layer (11). A circulating pump (5) is provided on the frame (1). The water inlet of the circulating pump (5) is connected to the circulating water tank (2). The water outlet of the circulating pump (5) is connected to a main water pipe (6). One end of the main water pipe (6) passes through the intake tower (3) and extends to the middle of the exhaust tower (4). A first spiral nozzle (8) is provided at the bottom of the end of the main water pipe (6) located inside the exhaust tower (4). The other end of the main water pipe (6) is connected to a water distribution pipe (7) located inside the intake tower (3). A second spiral nozzle (9) is provided on the water distribution pipe (7).

2. The high-temperature dust-laden exhaust gas pretreatment device generated by a kneader according to claim 1, characterized in that: The bottom of the circulating water tank (2) is inclined, and a limit adjustment overflow pipe (12) is provided on the top of the circulating water tank (2). One end of the limit adjustment overflow pipe (12) extends out of the bottom of one side of the circulating water tank (2), and a drain valve (15) is connected to the bottom of the extended end.

3. The device for pretreatment of high-temperature dust-laden exhaust gas generated by a kneader according to claim 2, characterized in that: A water replenishment float controller (13) is provided on the top side of the circulating water tank (2).

4. The high-temperature dust-laden exhaust gas pretreatment device generated by a kneader according to claim 2, characterized in that: A stainless steel glass tube liquid level display device (14) is provided on the top of the other side of the circulating water tank (2).

5. The high-temperature dust-laden exhaust gas pretreatment device generated by a kneader according to claim 1, characterized in that: At least two first spiral nozzles (8) are provided, and the first spiral nozzles (8) spray downwards.

6. The high-temperature dust-laden exhaust gas pretreatment device generated by a kneader according to claim 1, characterized in that: At least one second spiral nozzle (9) is provided, and the second spiral nozzle (9) sprays upward.

7. The high-temperature dust-laden exhaust gas pretreatment device generated by a kneader according to claim 1, characterized in that: The filler layer (10) is located below the first spiral nozzle (8), and the demisting layer (11) is located above the first spiral nozzle (8).

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