Tower type deodorization device

Abstract

The utility model relates to the technical field of odor treatment, and provides a tower type deodorization device which comprises a tower body, the tower body is divided into an acid pickling section, an alkali washing section, a water removal section and an adsorption section from bottom to top, a sealing partition plate is arranged between the acid pickling section and the alkali washing section, and the acid pickling section and the alkali washing section are communicated through a communicating pipe. The alkali washing section, the water removal section and the adsorption section are all separated through communicating partition plates, the acid washing section is connected with a gas conveying pipe, the adsorption section is connected with an exhaust pipe, the acid washing section is connected with an acid liquor circulation assembly, and the alkali washing section is connected with an alkali liquor circulation assembly. Efficient removal and separated management of different malodorous substances are facilitated, and the deodorization effect and the treatment efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of odor treatment, in particular to a tower deodorizing device. Background Art

[0002] Organic solid waste includes domestic organic waste, construction organic waste and industrial organic waste. These wastes contain complex organic components, and organic matter generally exists in the form of protein, fat and polysaccharide organic matter. During the fermentation, decay and decomposition process, these organic matter will gradually release a variety of malodorous gas pollutants. Therefore, the malodorous gases generated during the treatment of organic matter need to be treated to meet the standards before they can be discharged to reduce the pollution of odor to the atmosphere. However, the existing deodorization processes and deodorization methods are of various types, the process is lengthy, the deodorization structure is complex, the area occupied is large, and the stability of odor emission that meets the standards is insufficient. Utility Model Content

[0003] The utility model aims to provide a tower deodorizing device to solve the above-mentioned technical problems and improve the deodorizing effect and processing efficiency.

[0004] The embodiment of the utility model is realized through the following technical scheme: a tower deodorizing device comprises a tower body, which is divided into a pickling section, an alkali washing section, a water removal section and an adsorption section from bottom to top, a sealing partition is provided between the pickling section and the alkali washing section, the pickling section and the alkali washing section are connected through a connecting pipe, the alkali washing section, the water removal section and the adsorption section are all separated by a connecting partition, the pickling section is connected to an air supply pipe, the adsorption section is connected to an exhaust pipe, the pickling section is connected to an acid liquid circulation component, and the alkali washing section is connected to an alkali liquid circulation component.

[0005] Furthermore, the pickling section and the alkali washing section are divided into a liquid storage layer and a spray layer from bottom to top through a connecting partition. A spray atomizer and a water spray filler are provided in the spray layer. Inspection ports and sight glasses for observing the internal conditions of the tower body are provided on the side walls of the spray layer and the adsorption section.

[0006] Preferably, one end of the connecting pipe is connected to the top of the spray layer of the acid washing section, and the other end of the connecting pipe is connected to the top of the liquid storage layer of the alkali washing section.

[0007] Preferably, the spray layer is a single layer or multiple layers separated by interconnecting partitions.

[0008] Furthermore, the adsorption section is provided with a reflux pipe for unidirectional flow to the gas transmission pipe, the reflux pipe is provided with a first switch valve, the exhaust pipe is provided with a second switch valve, and the adsorption section is provided with a gas concentration sensor which is respectively connected to the first switch valve and the second switch valve signal.

[0009] Furthermore, the acid liquid circulation component includes a connected acid liquid tank and a first dosing tank, the acid liquid tank is provided with a first circulation pump, the alkali liquid circulation component includes a connected alkali liquid tank and a second dosing tank, the alkali liquid tank is provided with a second circulation pump, and the acid liquid tank, the alkali liquid tank, the first dosing tank and the second dosing tank are all connected with a water supply pipe and a sewage pipe.

[0010] Furthermore, the water removal section is provided with a plate-type water collecting strip or a stainless steel wire mesh for demisting and collecting water.

[0011] Furthermore, the adsorption section is provided with activated carbon.

[0012] The utility model has at least the following advantages and beneficial effects: through the segmented design of the acid washing section, the alkaline washing section, the water removal section and the adsorption section, the odor is treated in multiple stages from bottom to top, which is conducive to the efficient removal and separate management of different odorous substances, and improves the deodorization effect and treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of a tower deodorizing device provided by the utility model;

[0015] Icons: 1-tower body, 11-sealed partition, 12-connecting pipe, 13-connecting partition, 2-pickling section, 21-liquid storage layer, 22-spraying layer, 220-inspection port, 221-spray atomizer, 222-water spraying filler, 3-alkaline washing section, 4-water removal section, 5-adsorption section, 51-reflux pipe, 52-first switch valve, 53-gas concentration sensor, 6-gas supply pipe, 7-exhaust pipe, 71-second switch valve, 8-acid liquid circulation assembly, 81-acid liquid tank, 811-first circulation pump, 82-first dosing box, 9-alkaline liquid circulation assembly, 91-alkaline liquid tank, 911-second circulation pump, 92-second dosing box, 93-water supply pipe, 94-sewage pipe. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example

[0019] like Figure 1 As shown, in this embodiment, a tower deodorizing device is mainly disclosed, which has a simple structure, a small footprint and a high deodorizing efficiency, including a tower body 1, which is divided into an acid washing section 2, an alkali washing section 3, a water removal section 4 and an adsorption section 5 from bottom to top, a sealing partition 11 is arranged between the acid washing section 2 and the alkali washing section 3, the acid washing section 2 and the alkali washing section 3 are connected by a connecting pipe 12, and the alkali washing section 3, the water removal section 4 and the adsorption section 5 are separated by a connecting partition 13, the acid washing section 2 is connected to an air supply pipe 6, the adsorption section 5 is connected to an exhaust pipe 7, the acid washing section 2 is connected to an acid circulation component 8, and the alkali washing section 3 is connected to an alkali circulation component 9. It should be noted that the odor to be treated enters the tower body 1 through the air supply pipe 6, and a fan for extracting the odor can be connected to the air supply pipe 6; the outer circumference of the sealing partition 11 is fully connected to the inner wall of the tower body 1, and the sealing partition 11 is made of acid-resistant and alkali-resistant materials and should have good corrosion resistance; the connecting partition 13 can be an air distribution partition, which can be connected to the air supply pipe 6. By virtue of the gas to be treated, the acid in the pickling section 2 is fully in contact with the odor through the acid circulation component 8 and the circulation back and forth, and most of the alkaline malodorous substances such as ammonia and trimethylamine are removed. The alkali liquid in the alkali washing section 3 is fully in contact with the odor through the alkali circulation component 9 and the circulation back and forth, and malodorous substances such as hydrogen sulfide, low-level fatty acids, methyl mercaptan, methyl sulfide, methyl disulfide, etc., and then most of the water in the exhaust gas is removed through the dewatering section 4, and the residual malodorous substances are adsorbed and removed through the adsorption section 5, and finally discharged through the exhaust pipe 7. The odor is processed in multiple stages from bottom to top, and different malodorous substances are efficiently removed and separated and managed, which effectively improves the deodorization effect. In addition, the pickling section 2 can be free of acid, that is, the pickling section 2 is adjusted to a water washing section, and the tower body 1 is composed of a water washing section, an alkali washing section 3, a water removal section 4 and an adsorption section 5 from bottom to top. The odor first enters the water washing section through the gas transmission pipe 6 for reaction, and then enters the alkali washing section 3 through the connecting pipe 12 for reaction.

[0020] Furthermore, in the specific implementation, the above-mentioned pickling section 2 and alkali washing section 3 provided in the embodiment of the utility model are divided into a liquid storage layer 21 and a spray layer 22 from bottom to top through a connecting partition 13. A spray atomizer 221 and a water spray filler 222 are provided in the spray layer 22. The spray layer 22 and the side wall of the adsorption section 5 are provided with an inspection port 220 and a sight glass for observing the internal situation of the tower body 1. The sight glass adopts the existing technology, and the specific structure and the connection method with the tower body are well known to those skilled in the art and are not repeated here. It should be noted that the liquid storage layer 21 is arranged below the spray layer 22 to collect the liquid after the spray reaction; the water spray filler 222 can adopt a plastic filler with a thin-walled structure and a large flux, so that the odor and the spray liquid can fully contact to remove the odorous substances; the inspection port 220 is sealed by a sealing cover buckle, which is convenient for the inspection and maintenance of the equipment; specifically, the spray layer 22 is a multi-layer separated by a connecting partition 13, realizing a multi-stage spray reaction, and further improving the deodorization effect.

[0021] Preferably, in a specific implementation, one end of the connecting pipe 12 provided in the embodiment of the utility model is connected to the top of the spray layer 22 of the pickling section 2, and the other end of the connecting pipe 12 is connected to the top of the liquid storage layer 21 of the alkali washing section 3. Specifically, in the spray layer 22, the connecting pipe 12 passes through two 90° elbows and turns vertically toward the liquid surface of the liquid storage layer 21. The position of the pipe mouth is more than 300 mm above the liquid surface, which prevents the liquid stored in the liquid storage layer 21 in the alkali washing section 3 from being sucked back under the action of pressure, and at the same time prevents the spray alkali solution from entering the pickling section 2 through the connecting pipe 12, thereby ensuring the stability of the operation of the device.

[0022] Furthermore, in a specific implementation, the acid liquid circulation component 8 provided in the embodiment of the utility model comprises an acid liquid tank 81 and a first dosing tank 82 which are connected, the acid liquid tank 81 is provided with a first circulation pump 811, the alkali liquid circulation component 9 comprises an alkali liquid tank 91 and a second dosing tank 92 which are connected, the alkali liquid tank 91 is provided with a second circulation pump 911, the acid liquid tank 81, the alkali liquid tank 91, the first dosing tank 82 and the second dosing tank 92 are all connected with a water supply pipe 93 and a sewage pipe 94, specifically, under the action of the first circulation pump 811, the acid liquid in the acid liquid tank 81 is circulated and pumped into the pickling section 2 for reaction, and after the reaction in the pickling section 2 The acid solution is returned to the acid solution tank 81 to realize acid solution circulation; under the action of the second circulation pump 911, the alkali solution in the alkali solution tank 91 is circulated and pumped into the alkali washing section 3 for reaction, and the alkali solution after the reaction in the alkali washing section 3 is returned to the alkali solution tank 91 to realize alkali solution circulation; according to the measured values ​​of the pH online detectors respectively arranged on the acid solution tank 81 and the alkali solution tank 91, the first dosing box 82 or the first dosing box 82 is regularly added with agents to maintain the absorption efficiency of odorous substances, and water is supplemented to the acid solution tank 81, the alkali solution tank 91, the first dosing box 82 and the second dosing box 92 through the water supply pipe 93 to avoid crystallization.

[0023] Furthermore, in a specific implementation, the above-mentioned adsorption section 5 provided in the embodiment of the utility model is provided with a reflux pipe 51 for unidirectional flow to the gas transmission pipe 6, the reflux pipe 51 is provided with a first switch valve 52, the exhaust pipe 7 is provided with a second switch valve 71, and the adsorption section 5 is provided with a gas concentration sensor 53 which is respectively connected to the first switch valve 52 and the second switch valve 71 by signal. It should be noted that the gas concentration sensor 53 monitors the indicators of pollutants in the gas after deodorization in real time, and controls the first switch valve 52 and the second switch valve 71 to perform actions. When the emission standard is met, the first switch valve 52 is closed, the second switch valve 71 is opened, and the gas is discharged through the exhaust pipe 7; when the emission standard is not met, the first switch valve 52 is opened, the second switch valve 71 is closed, and the gas re-enters the tower body 1 through the reflux pipe 51 for deodorization reaction, thereby ensuring that the device can stably meet the emission standard.

[0024] Furthermore, in a specific implementation, the dewatering section 4 provided in the embodiment of the utility model is provided with a plate-type water collecting strip or a stainless steel wire mesh for demisting and collecting water, which intercepts most of the water in the gas and achieves a dewatering effect.

[0025] Furthermore, in the specific implementation, the above-mentioned adsorption section 5 provided in the embodiment of the utility model is provided with activated carbon. Specifically, activated carbon with an iodine value ≥ 800, waterproof type, and honeycomb shape can be used to adsorb and remove residual malodorous substances, thereby further improving the deodorization effect.

[0026] In addition, the tower body can adopt a larger height-to-diameter ratio, so that a stronger wind extraction state is formed inside the tower body, the device has low wind resistance and low operating costs.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tower deodorizing device, characterized in that: The tower body (1) comprises a tower body (1), wherein the tower body (1) is divided into a pickling section (2), an alkali washing section (3), a water removal section (4) and an adsorption section (5) from bottom to top; a sealing partition (11) is provided between the pickling section (2) and the alkali washing section (3); the pickling section (2) and the alkali washing section (3) are connected via a connecting pipe (12); the alkali washing section (3), the water removal section (4) and the adsorption section (5) are all separated by a connecting partition (13); the pickling section (2) is connected to a gas transmission pipe (6); the adsorption section (5) is connected to an exhaust pipe (7); the pickling section (2) is connected to an acid liquid circulation component (8); and the alkali washing section (3) is connected to an alkali liquid circulation component (9).

2. A tower deodorizing device as claimed in claim 1, characterized in that: The acid washing section (2) and the alkali washing section (3) are divided into a liquid storage layer (21) and a spray layer (22) from bottom to top through the connecting partition (13); a spray atomizer (221) and a water spray filler (222) are provided in the spray layer (22); and the side walls of the spray layer (22) and the adsorption section (5) are provided with inspection ports (220) and sight glasses for observing the internal conditions of the tower body (1).

3. A tower deodorizing device as claimed in claim 2, characterized in that: One end of the connecting pipe (12) is connected to the top of the spray layer (22) of the acid washing section (2), and the other end of the connecting pipe (12) is connected to the top of the liquid storage layer (21) of the alkali washing section (3).

4. A tower deodorizing device as claimed in claim 2, characterized in that: The spray layer (22) is a single layer or multiple layers separated by the connecting partition (13).

5. A tower deodorizing device as claimed in claim 1, characterized in that: The adsorption section (5) is provided with a return pipe (51) for unidirectional flow to the gas delivery pipe (6); the return pipe (51) is provided with a first switch valve (52); the exhaust pipe (7) is provided with a second switch valve (71); and the adsorption section (5) is provided with a gas concentration sensor (53) which is respectively connected to the first switch valve (52) and the second switch valve (71) by signal.

6. A tower deodorizing device as claimed in claim 1, characterized in that: The acid liquid circulation component (8) comprises an acid liquid tank (81) and a first dosing tank (82) which are connected, and the acid liquid tank (81) is provided with a first circulation pump (811). The alkali liquid circulation component (9) comprises an alkali liquid tank (91) and a second dosing tank (92) which are connected, and the alkali liquid tank (91) is provided with a second circulation pump (911). The acid liquid tank (81), the alkali liquid tank (91), the first dosing tank (82) and the second dosing tank (92) are all connected with a water supply pipe (93) and a sewage discharge pipe (94).

7. A tower deodorizing device as claimed in claim 1, characterized in that: The dewatering section (4) is provided with a plate-type water collecting strip or a stainless steel wire mesh for demisting and collecting water.

8. A tower deodorizing device as claimed in claim 1, characterized in that: The adsorption section (5) is provided with activated carbon.

Images