Drying machine tail gas washing device

Abstract

The utility model relates to the technical field of drying machine tail gas treatment, and discloses a drying machine tail gas washing device which comprises a tail gas treatment box body, a washing tower is detachably nested at the upper end of an inner cavity of the tail gas treatment box body, and a spraying assembly is arranged at the upper end of an inner cavity of the washing tower. A detergent liquid storage box is detachably arranged at the bottom end of an inner cavity of the tail gas treatment box body, and the center position of the top end of the detergent liquid storage box communicates with the bottom end of the washing tower; according to the utility model, heat exchange between tail gas of the drying machine and a detergent can be realized in the conveying process before washing, primary cooling is realized, secondary cooling is realized during spray washing, the influence of temperature rise on the working comfort of workers is avoided, and the detergent can be heated, so that molecular movement in the detergent is aggravated, and the service life of the workers is prolonged. Furthermore, the reaction between the detergent and harmful substances in the tail gas can be improved during spraying, so that the tail gas washing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying machine tail gas treatment technical field, concretely is a drying machine tail gas washing device. BACKGROUND

[0002] Drying machine usually utilizes hot air, infrared, microwave etc. energy to heat material, promotes the evaporation of water in material, simultaneously through ventilation system and exports the air containing moisture, realizes the drying of material. It can handle various forms of material, such as granular, powder, block, sheet etc., is widely used in chemical industry, food, pharmacy, agriculture etc. industry, and the working principle and characteristics of different types of drying machine are different, and common have hot air drying machine, freeze drying machine, vacuum drying machine etc. These drying machines can produce tail gas containing dust, particulate matter, harmful gas etc. pollutant in the operation process, and tail gas washing device is specially used to handle these tail gas to reduce the pollution to the environment;

[0003] The existing drying machine that realizes drying through heating evaporation moisture produces tail gas with certain heat, and the traditional washing tower cannot fully distribute the washing agent sprayed when washing in the internal space of the washing tower, part of the tail gas with heat is discharged through the gap, not only pollutes the working environment, and with the lapse of time, can cause the internal temperature of the working area to rise, and further influence the comfort of the worker when working, easily lead to reduce the enthusiasm of the worker, thus lead to the reduction of working efficiency, for this purpose, we propose a drying machine tail gas washing device. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a drying machine tail gas washing device, which can effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a drying machine tail gas washing device, including tail gas processing box body, the tail gas processing box body inner chamber upper end detachably nested is equipped with washing tower, the washing tower inner chamber upper end is equipped with spray component, the tail gas processing box body inner chamber bottom end detachably is equipped with washing agent storage tank, and washing agent storage tank top end center position place and washing tower bottom end intercommunication connection, the tail gas processing box body surface of washing agent storage tank one side detachably nested is equipped with air inlet pipe, and air inlet pipe extends washing agent storage tank inside through tail gas processing box body, the washing agent storage tank inner chamber is equipped with heat exchange component, and heat exchange component has a plurality of and equidistantly arranged in washing agent storage tank inside, and one end of heat exchange component close to air inlet pipe and air inlet pipe intercommunication connection, and the drainage tube is interconnected between heat exchange components, the heat exchange component one side relative to air inlet pipe intercommunication connection has the gas guide pipe, and the gas guide pipe extends to washing tower inside through washing tower, the washing tower inner chamber bottom end detachably is connected with the air outlet head, and one side of air outlet head and gas guide pipe intercommunication connection.

[0006] Preferably, the heat exchange assembly comprises a heat exchange plate, a gas flow cavity and heat conduction sheets, the heat exchange plate is internally provided with the gas flow cavity, and the gas flow cavity is fixedly connected with the heat conduction sheets alternately and equidistantly on both sides of the cavity.

[0007] Preferably, the spraying assembly comprises a spraying disc arranged at the upper end of the inner cavity of the washing tower, a plurality of atomizing nozzles are interconnected at the bottom end of the spraying disc, a liquid guide pipe is interconnected at one side of the spraying disc, and one end of the liquid guide pipe extends into the inside of the detergent storage tank.

[0008] Preferably, a plurality of air guide holes are arranged on the upper surface of the spraying disc, and the air guide pipe vertically penetrates the spraying disc.

[0009] Preferably, a liquid suction pump is arranged at one side of the liquid guide pipe in the inside of the detergent storage tank, the liquid outlet end of the liquid suction pump is interconnected with the liquid guide pipe, a liquid injection pipe is interconnected with the bottom end of the surface of the detergent storage tank, and a valve is arranged in the inside of the liquid injection pipe.

[0010] Preferably, an adsorption cylinder is threadedly connected at the top end of the washing tower, and a dust filter cloth and an activated carbon adsorption layer are arranged in the inside of the adsorption cylinder.

[0011] Preferably, an exhaust pipe is interconnected with the center position at the top end of the adsorption cylinder.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a drying machine tail gas washing device, which comprises a washing tower, a detergent storage tank, an air inlet pipe, a heat exchange assembly, a drainage pipe and a spraying assembly.

[0014] 2, the utility model discloses a heat exchange assembly that is composed of heat exchange plate, gas flow cavity and heat conduction sheet, when the exhaust gas flows in the gas flow cavity that is arranged inside the heat exchange plate, can effectively exchange heat with the detergent in the detergent storage tank through the heat exchange plate, and when exchanging heat, the heat conduction plate that is alternately arranged in the gas flow cavity cavity can increase the contact area, and then improve the heat exchange effect, further improve the cooling effect of the exhaust gas. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the section view of the washing tower of the utility model;

[0017] Figure 3 It is the section view of the detergent storage tank of the utility model;

[0018] Figure 4 It is the section view of the heat exchange assembly of the utility model.

[0019] In the drawing: 1, tail gas treatment box body;2, detergent storage tank;3, liquid injection pipe;4, air inlet pipe;5, gas guide pipe;6, liquid guide pipe;7, adsorption cylinder;8, exhaust pipe;9, spray disc;10, gas guide hole;11, air outlet;12, heat exchange assembly;13, drainage pipe;14, liquid suction pump;15, washing tower;121, heat exchange plate;122, gas flow cavity;123, heat conduction sheet. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] EMBODIMENT

[0022] Please refer to Figure 1 - Figure 4The tail gas washing device of the dryer in the drawing comprises a tail gas treatment box body 1, a washing tower 15 is detachably nested at the upper end of the inner cavity of the tail gas treatment box body 1, a spraying assembly is arranged at the upper end of the inner cavity of the washing tower 15, a washing agent storage tank 2 is detachably arranged at the bottom end of the inner cavity of the tail gas treatment box body 1, and the top end center position of the washing agent storage tank 2 is connected with the bottom end of the washing tower 15, a gas inlet pipe 4 is detachably nested on the surface of the tail gas treatment box body 1 at one side of the washing agent storage tank 2, and the gas inlet pipe 4 extends into the washing agent storage tank 2 through the tail gas treatment box body 1, heat exchange assemblies 12 are arranged in the washing agent storage tank 2, and the heat exchange assemblies 12 are equidistantly arranged in the washing agent storage tank 2, one end of the heat exchange assembly 12 close to the gas inlet pipe 4 is connected with the gas inlet pipe 4, a drainage pipe 13 is connected between the heat exchange assemblies 12, a gas guide pipe 5 is connected on the side of the heat exchange assembly 12 relative to the gas inlet pipe 4, and the gas guide pipe 5 extends into the washing tower 15 through the washing tower 15, and a gas outlet head 11 is detachably connected to the bottom end of the inner cavity of the washing tower 15, and the gas outlet head 11 is connected with the gas guide pipe 5 at one side; the gas flow circulation channel formed by the gas inlet pipe 4, the heat exchange assemblies 12, the drainage pipe and the gas guide pipe 5 realizes the conveying of the tail gas of the dryer, the heat exchange assemblies 12 enable the tail gas to exchange heat with the washing agent during the conveying process before washing, so that the tail gas is cooled for the first time, the spraying assembly sprays to cool the tail gas for the second time, and the heat in the exhaust gas is effectively removed through multiple cooling processes, so that the heat in the tail gas is prevented from being discharged into the working environment to cause the temperature to rise and affect the comfort of the workers during work.

[0023] The heat exchange assembly 12 comprises heat exchange plates 121, gas flow cavities 122 and heat conduction plates 123, the gas flow cavities 122 are arranged in the heat exchange plates 121, and the heat conduction plates 123 are fixedly connected to the two sides of the inner cavities of the gas flow cavities 122; when the exhaust gas flows in the gas flow cavities arranged in the heat exchange plates 121, the exhaust gas can effectively exchange heat with the washing agent in the washing agent storage tank 2 through the heat exchange plates 121, and the heat conduction plates alternately arranged in the inner cavities of the gas flow cavities 122 can increase the contact area during heat exchange, thereby improving the heat exchange effect and further improving the cooling effect on the exhaust gas.

[0024] The spray assembly comprises a spray disc 9 arranged at the upper end of the inner cavity of the washing tower 15, a plurality of atomizing nozzles are interconnected at the bottom end of the spray disc 9, a liquid guide pipe 6 is interconnected at one side of the spray disc 9, one end of the liquid guide pipe 6 extends into the inside of the detergent storage tank 2, a plurality of air guide holes 10 are formed in the upper surface of the spray disc 9, and the air guide pipe 5 vertically penetrates the spray disc 9, a liquid suction pump 14 is arranged at one side of the liquid guide pipe 6 in the inside of the detergent storage tank 2, the liquid outlet end of the liquid suction pump 14 is interconnected with the liquid guide pipe 6, a liquid injection pipe 3 is interconnected at the bottom end of the surface of the detergent storage tank 2, and a valve is arranged in the liquid injection pipe 3; the liquid suction pump 14 sucks the detergent in the detergent storage tank 2, and the detergent is delivered into the spray disc 9 through the liquid guide pipe 6, and the spray disc 9 sprays, so that the tail gas is washed, and the excess washing liquid flows back into the inside of the detergent storage tank 2, so that the washing liquid is recycled, resources are effectively saved, and the washing cost is reduced.

[0025] The top end of the washing tower 15 is threadedly connected with an adsorption cylinder 7, the inside of the adsorption cylinder 7 is provided with a dust filter cloth and an activated carbon adsorption layer, and the top end of the adsorption cylinder 7 is interconnected with an exhaust pipe 8 at the center position; the top end of the inner cavity of the washing tower 15 is provided with an internal thread, the outer side wall of the adsorption cylinder 7 is provided with a thread matched with the internal thread, and the two are connected through the thread, so that the dust filter cloth and the activated carbon adsorption layer can be conveniently replaced in the later period, and the adsorption effect of the tail gas is ensured.

[0026] It should be noted that the utility model is a kind of drying machine tail gas washing device, air inlet pipe 4 is connected with drying device tail gas exhaust pipe by gas conveying pipe, so that tail gas is delivered into tail gas treatment box 1 inside by air inlet pipe, the air flow circulation channel formed by air inlet pipe 4, heat exchange plate 121, guide pipe and air guide pipe 5 realizes the delivery of drying machine tail gas, and heat exchange plate 121 makes tail gas heat exchange with detergent during delivery before washing, and when heat exchange, the heat conduction plate alternately arranged in the inner cavity of gas flow cavity 122 can increase contact area, to improve heat exchange effect, to realize the first cooling of tail gas, when tail gas is delivered to air outlet head 11 and discharged into washing tower 15 through air outlet head 11, liquid suction pump 14 sucks detergent in detergent storage tank 2, and the detergent is delivered into spray disc 9 through liquid guide pipe 6, and the spray disc 9 sprays, so that the tail gas is washed, the process realizes the second cooling, and the heat in waste gas can be effectively removed by multiple cooling, to avoid the heat in tail gas from being discharged into working environment to cause temperature rise and affect the comfort of workers during work.

[0027] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A dryer exhaust gas scrubbing device comprising an exhaust gas treatment cabinet (1), characterized in that: The upper end of the inner cavity of the tail gas treatment box body (1) is detachably nested with a washing tower (15), the upper end of the inner cavity of the washing tower (15) is provided with a spraying assembly, the bottom end of the inner cavity of the tail gas treatment box body (1) is detachably provided with a detergent storage tank (2), and the top end center position of the detergent storage tank (2) is interconnected with the bottom end of the washing tower (15), the surface of the tail gas treatment box body (1) on one side of the detergent storage tank (2) is detachably nested with an air inlet pipe (4), and the air inlet pipe (4) extends through the tail gas treatment box body (1) to extend inside the detergent storage tank (2), the inner cavity of the detergent storage tank (2) is provided with a heat exchange assembly (12), and a plurality of heat exchange assemblies (12) are equidistantly arranged in the detergent storage tank (2), one end of the heat exchange assembly (12) close to the air inlet pipe (4) is interconnected with the air inlet pipe (4), and the heat exchange assemblies (12) are interconnected with the air inlet pipe (4) on one side of the heat exchange assembly (12). The heat exchange assembly (12) is interconnected with the air inlet pipe (4), and the heat exchange assembly (12) is interconnected with the air inlet pipe (4) on one side of the heat exchange assembly (12). The heat exchange assembly (12) is interconnected with the air inlet pipe (4), and the heat exchange assembly (12) is interconnected with the air inlet pipe (4).

2. A dryer exhaust scrubbing device according to claim 1, characterized in that: The heat exchange assembly (12) comprises a heat exchange plate (121), a gas flow cavity (122) and a heat conducting sheet (123), the heat exchange plate (121) is provided with a gas flow cavity (122) inside, and the gas flow cavity (122) is fixedly connected with a heat conducting sheet (123) on both sides of the inner cavity.

3. A dryer exhaust scrubbing device according to claim 1, wherein: The spraying assembly comprises a spraying disc (9) arranged in the upper end of the inner cavity of the washing tower (15), and a plurality of atomizing nozzles are interconnected at the bottom end of the spraying disc (9), and a liquid guide pipe (6) is interconnected on one side of the spraying disc (9), and one end of the liquid guide pipe (6) extends into the inside of the detergent storage tank (2).

4. A dryer exhaust scrubbing device according to claim 3, characterized in that: A plurality of air guide holes (10) are formed in the upper surface of the spraying disc (9), and the air guide pipe (5) vertically penetrates the spraying disc (9).

5. A dryer exhaust scrubbing device according to claim 1, wherein: A liquid suction pump (14) is arranged in the inside of the detergent storage tank (2) on one side of the liquid guide pipe (6), and the liquid outlet end of the liquid suction pump (14) is interconnected with the liquid guide pipe (6), and a liquid injection pipe (3) is interconnected on the bottom end of the surface of the detergent storage tank (2), and a valve is arranged in the liquid injection pipe (3).

6. A dryer exhaust scrubbing device according to claim 1, wherein: The top end of the washing tower (15) is threadedly connected with an adsorption cylinder (7), and the inside of the adsorption cylinder (7) is provided with a dust filter cloth and an activated carbon adsorption layer.

7. A dryer exhaust scrubbing device according to claim 6, characterized in that: The top end center position of the adsorption cylinder (7) is interconnected with an exhaust pipe (8). The top end center position of the adsorption cylinder (7) is interconnected with an exhaust pipe (8).

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