Sulfur-containing tail gas treatment device capable of continuously spraying and washing

Abstract

The utility model belongs to the technical field of sulfur-containing tail gas treatment, and particularly relates to a sulfur-containing tail gas treatment device capable of continuously spraying and washing, which comprises a spraying tower and a water storage tank, the water storage tank is fixedly connected to the bottom of the spraying tower, a filtering device is arranged on the left side of the spraying tower, and a spraying device is arranged in the spraying tower. According to the sulfur-containing tail gas treatment device capable of continuously spraying and washing, sulfur-containing tail gas is input into a filter box through a gas inlet pipe, particle impurities in the sulfur-containing tail gas are intercepted and filtered through a filter screen in the filter box, the intercepted tail gas is input into a spraying tower through a connecting pipe, and then a rain cap is impacted, so that the tail gas is dispersed; and the water pump is started, liquid medicine in the water storage tank is pumped to the water conveying pipe through the water pumping pipe and sprayed out through the spray head, and therefore sustainable water washing purification is conducted on the sulfur-containing tail gas in the spray tower.

Description

TECHNICAL FIELD

[0001] The utility model relates to sulfur-containing tail gas treatment technical field, specifically is a kind of sulfur-containing tail gas treatment device of sustainable spray water washing. BACKGROUND

[0002] In the industrial production process, in order to ensure the treatment of low concentration sulfur-containing tail gas, thereby harmless emission, it is necessary to use spray tower to spray treatment, spray tower is divided into different kinds according to functional properties, it can also be applied in different fields and used, but the spray tower in prior art background, when working, cannot avoid that spray liquid flows back to the inlet flue, and cannot guarantee the quality of spraying, and it is not convenient to remove the acid mist commonly seen in the process of sulfur-containing tail gas spraying, to ensure the gas efficiency, and it is not conducive to guarantee internal air pressure.

[0003] As disclosed in Chinese patent publication No. CN217662519U, a kind of sulfur-containing tail gas treatment device of sustainable spray water washing, when using, the entering of external flue gas is carried out through the flue, the spray liquid in the bottom of tower body and water expansion tank is stirred by the inclined setting of flue, to avoid backflow, and the spray liquid is input into the first ring pipe and the second ring pipe through the water inlet pipe and the water outlet pipe by the start of circulating pump, to ensure continuous uninterrupted spraying, since the first ring pipe and the second ring pipe are respectively connected with the first branch pipe and the second branch pipe, and the first branch pipe and the second branch pipe are vertically arranged, to ensure the spraying coverage, which is conducive to guarantee the spraying effect, the demister is symmetrically arranged in the demisting section, and the size of the demisting section and the demister is increased, the cross-sectional area of the demisting section is larger than that of the tower body, so that the gas flow rate at this point is reduced, and the moisture in the gas is more easily intercepted by the demister in the middle, thereby reducing the condensate and mist at the exhaust port, and ensuring the demisting efficiency.

[0004] However, the sulfur-containing tail gas treatment device of sustainable spray water washing in the above-mentioned application has certain limitations because it generally contains particulate impurities in the sulfur-containing tail gas, and impurities often exist in the sprayed water during the recycling of the sprayed water, which may cause the spray port to be blocked if not treated.

[0005] Therefore, it is necessary to provide a sulfur-containing tail gas treatment device of sustainable spray water washing. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a sulfur-containing tail gas treatment device of sustainable spray water washing to solve the problem of the sulfur-containing tail gas treatment device of sustainable spray water washing in the above-mentioned background technology, which generally contains particulate impurities in the sulfur-containing tail gas, and impurities often exist in the sprayed water during the recycling of the sprayed water, which may cause the spray port to be blocked if not treated.

[0007] To achieve the above object, the utility model provides following technical scheme: a kind of sulfur-containing tail gas treatment device of sustainable spray water washing, including spray tower and water storage tank, the water storage tank is fixedly connected to the bottom of spray tower, the left side of the spray tower is provided with filter device, the inside of the spray tower is provided with spraying device.

[0008] The filter device includes filter box, air inlet pipe, connecting pipe, rain cap, filter screen, the filter box is installed on the left side of the spray tower, the air inlet pipe is fixedly connected to the left outer surface of filter box, the connecting pipe is fixedly connected to the right outer surface of filter box, and the right end thereof extends into the inside of the spray tower, the rain cap is fixedly connected to the right end of connecting pipe, and the filter screen is installed in the inside of filter box. The sulfur-containing tail gas is input into the inside of filter box through air inlet pipe, and the particulate impurities in the sulfur-containing tail gas are intercepted and filtered by the filter screen in the inside of filter box. The intercepted tail gas is input into the inside of the spray tower through connecting pipe, and then hits the rain cap, so that the tail gas is dispersed, which is more conducive to water washing and purification.

[0009] Further improvement lies in that a push-pull groove is formed in the top center of the filter box, and the filter screen is slidingly connected to the inside of the push-pull groove. The filter screen is periodically taken out from the inside of the push-pull groove for cleaning, so as to avoid the filter screen being blocked by particulate impurities.

[0010] Further improvement lies in that the spraying device includes a water pump, a water suction pipe, a water delivery pipe and a spray head. The water pump is installed on the top right side of the water storage tank. The water suction pipe is fixedly connected to the water suction port of the water pump and extends into the middle part of the inside of the water storage tank. The water delivery pipe is fixedly connected to the water outlet of the water pump and extends into the inside of the spray tower at the top. The spray head is fixedly connected to the top of the water delivery pipe. When the water pump is started, the liquid medicine in the inside of the water storage tank is pumped to the water delivery pipe through the water suction pipe and sprayed out through the spray head, so as to wash and purify the sulfur-containing tail gas in the inside of the spray tower.

[0011] Further improvement lies in that a filter mesh is installed in the inside of the spray tower below, and a sensor is installed in the middle lower part of the inner wall of the water storage tank. The liquid medicine after washing falls through the filter mesh, and the residual fine particles contained in the water are intercepted by the filter mesh again, so as to ensure the cleanliness of the reflux liquid medicine and avoid blocking the spray head. After the reflux liquid medicine falls into the inside of the water storage tank, the impurities possibly contained therein are deposited at the bottom of the water storage tank. When the impurities accumulate to the position of the sensor, the sensor sends an electric signal to the outside control room, so as to remind the operator to discharge the dirt.

[0012] Further improvement lies in that a liquid filling hopper is fixedly connected to the top right side of the water storage tank, and a dirt discharge pipe is fixedly connected to the bottom of the right outer surface of the water storage tank. An electric sealing valve is installed on the outer surface of the liquid filling hopper and the dirt discharge pipe respectively. The liquid medicine is filled into the inside of the water storage tank through the liquid filling hopper, and the dirt is periodically discharged through the dirt discharge pipe.

[0013] Further improvement lies in that the top of the spray tower is provided with an exhaust port, and a cyclone plate is installed above the inner wall of the spray tower, the water-washed tail gas passes through the inside of the cyclone plate, and the gas-liquid mixture is rapidly separated by using rotational kinetic energy and centrifugal force, so that the liquid drops in the gas-liquid mixture are separated outward due to the centrifugal force, and the treated tail gas is discharged into the atmosphere through the exhaust port.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The sulfur-containing tail gas is input into the inside of the filter box through the air inlet pipe, the particulate impurities in the sulfur-containing tail gas are intercepted and filtered through the filter screen in the filter box, the intercepted tail gas is input into the inside of the spray tower through the connecting pipe, and then impacts the rain hat, so that the tail gas is dispersed, and water washing and purification are more beneficial.

[0016] 2. The sulfur-containing tail gas treatment device with sustainable spray water washing is started, the water pump is started, the medicine water in the water storage tank is pumped to the water delivery pipe through the water suction pipe, and is sprayed out through the spray head, so that the sulfur-containing tail gas in the spray tower is sustainably washed and purified.

[0017] 3. The sulfur-containing tail gas treatment device with sustainable spray water washing, the medicine water after water washing is intercepted again by the filter screen, so as to ensure the cleanliness of the backflow medicine water and avoid clogging the spray head, and when the impurities in the water storage tank accumulate to the position of the sensor, the sensor sends an electric signal to the external control room, so as to remind the operator to discharge the dirt. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structure schematic diagram of the utility model;

[0019] Figure 2 It is a front view structure schematic diagram of the utility model;

[0020] Figure 3 It is a filter device independent split structure schematic diagram of the utility model;

[0021] Figure 4 It is a spray device sectional structure schematic diagram of the utility model.

[0022] In the drawing: 1, spray tower; 2, water storage tank; 301, filter box; 302, air inlet pipe; 303, connecting pipe; 304, rain hat; 305, filter screen; 401, water pump; 402, water suction pipe; 403, water delivery pipe; 404, spray head; 405, filter screen; 406, sensor; 407, liquid filling bucket; 408, sewage pipe; 409, electric sealing valve; 5, cyclone plate. DETAILED DESCRIPTION

[0023] 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, rather than 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 scope of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0025] Embodiment one:

[0026] A sulfur-containing tail gas treatment device that can continuously spray and wash, comprising a spray tower 1 and a water storage tank 2, the water storage tank 2 is fixedly connected to the bottom of the spray tower 1, the left side of the spray tower 1 is provided with a filtering device, and the inside of the spray tower 1 is provided with a spraying device.

[0027] The filtering device comprises a filtering box 301, an air inlet pipe 302, a connecting pipe 303, a rain cap 304 and a filter screen 305, the filtering box 301 is installed on the left side of the spray tower 1, the air inlet pipe 302 is fixedly connected to the left side outer surface of the filtering box 301, the connecting pipe 303 is fixedly connected to the right side outer surface of the filtering box 301, and the right end of the connecting pipe 303 extends into the inside of the spray tower 1, the rain cap 304 is fixedly connected to the right end of the connecting pipe 303, and the filter screen 305 is installed in the inside of the filtering box 301, the sulfur-containing tail gas is input into the inside of the filtering box 301 through the air inlet pipe 302, the particulate impurities in the sulfur-containing tail gas are intercepted and filtered through the filter screen 305 in the inside of the filtering box 301, and the intercepted tail gas is input into the inside of the spray tower 1 through the connecting pipe 303, then collides with the rain cap 304, so that the tail gas is dispersed, and water washing and purification are more conducive.

[0028] A push-pull groove is formed in the top center of the filtering box 301, and the filter screen 305 is slidingly connected to the inside of the push-pull groove, so that the filter screen 305 can be taken out from the inside of the push-pull groove for cleaning at regular intervals, and the particulate impurities are prevented from blocking the filter screen 305.

[0029] The spraying device comprises a water pump 401, a water suction pipe 402, a water delivery pipe 403 and a spray head 404, the water pump 401 is installed on the top right side of the water storage tank 2, the water suction pipe 402 is fixedly connected to the water suction port of the water pump 401 and extends into the middle part of the inside of the water storage tank 2, the water delivery pipe 403 is fixedly connected to the water outlet of the water pump 401 and extends into the inside of the spray tower 1 at the top, and the spray head 404 is fixedly connected to the top of the water delivery pipe 403, the water pump 401 is started, the medicine water in the water storage tank 2 is pumped to the water delivery pipe 403 through the water suction pipe 402, and is sprayed out through the spray head 404, so that the sulfur-containing tail gas in the inside of the spray tower 1 is washed and purified.

[0030] The top right side of the water storage tank 2 is fixedly connected with a liquid injection bucket 407, and the bottom of the right outer surface of the water storage tank 2 is fixedly connected with a sewage pipe 408. The outer surfaces of the liquid injection bucket 407 and the sewage pipe 408 are respectively provided with electric sealing valves 409. The liquid injection bucket 407 is used to inject the liquid medicine into the water storage tank 2, and the sewage pipe 408 is used to regularly discharge the sewage.

[0031] Embodiment two:

[0032] On the basis of the first embodiment, a filter dense net 405 is arranged at the lower part of the inside of the spray tower 1, and a sensor 406 is arranged at the middle lower part of the inner wall of the water storage tank 2. The liquid medicine after washing falls through the filter dense net 405, and the residual small particles contained in the water are intercepted by the filter dense net 405 again, so as to ensure the cleanliness of the reflux liquid medicine and avoid the clogging of the spray head 404. The impurities possibly contained in the reflux liquid medicine are deposited at the bottom of the water storage tank 2. When the impurities accumulate to the position of the sensor 406, the sensor 406 sends an electric signal to the outside control room, so as to remind the operator to discharge the sewage.

[0033] Embodiment three:

[0034] On the basis of the second embodiment, an exhaust port is arranged at the top of the spray tower 1, and a cyclone plate 5 is arranged at the upper part of the inner wall of the spray tower 1. The tail gas after washing and purifying passes through the inside of the cyclone plate 5, and the gas-liquid mixture is rapidly separated by using the rotational kinetic energy and centrifugal force, so that the liquid drops in the gas-liquid mixture are separated outward due to the centrifugal force. The treated tail gas is discharged into the atmosphere through the exhaust port.

[0035] It should be noted that the relative terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

Claims

1. A sulfur-containing tail gas treatment device capable of sustainable spray water washing, comprising a spray tower (1) and a water storage tank (2), the water storage tank (2) is fixedly connected to the bottom of the spray tower (1), characterized in that: The left side of the spray tower (1) is provided with a filtering device, and the inside of the spray tower (1) is provided with a spraying device; The filtering device comprises a filtering box (301), an air inlet pipe (302), a connecting pipe (303), a rain cap (304) and a filter screen (305). The filtering box (301) is installed on the left side of the spray tower (1). The air inlet pipe (302) is fixedly connected to the left outer surface of the filtering box (301). The connecting pipe (303) is fixedly connected to the right outer surface of the filtering box (301), and the right end of the connecting pipe (303) extends into the inside of the spray tower (1). The rain cap (304) is fixedly connected to the right end of the connecting pipe (303). The filter screen (305) is installed in the inside of the filtering box (301).

2. A sustainable water washable sulfur-containing tail gas treatment device according to claim 1, characterized in that: A push-pull slot is formed in the top center of the filtering box (301), and the filter screen (305) is slidingly connected to the inside of the push-pull slot.

3. A sustainable water washable sulfur-containing tail gas treatment device according to claim 1, characterized in that: The spraying device comprises a water pump (401), a water suction pipe (402), a water delivery pipe (403) and a spray head (404). The water pump (401) is installed on the top right side of the water storage tank (2). The water suction pipe (402) is fixedly connected to the water suction port of the water pump (401) and extends into the middle part of the inside of the water storage tank (2). The water delivery pipe (403) is fixedly connected to the water outlet of the water pump (401), and the top of the water delivery pipe (403) extends into the inside of the spray tower (1). The spray head (404) is fixedly connected to the top of the water delivery pipe (403).

4. A sustainable water washable sulfur-containing tail gas treatment device according to claim 3, wherein: A filtering dense net (405) is installed below the inside of the spray tower (1), and a sensor (406) is installed in the middle lower part of the inner wall of the water storage tank (2).

5. A sustainable water washable sulfur-containing tail gas treatment device according to claim 4, characterized in that: An injection tank (407) is fixedly connected to the top right side of the water storage tank (2). A sewage pipe (408) is fixedly connected to the bottom of the right outer surface of the water storage tank (2). An electric sealing valve (409) is installed on the outer surface of the injection tank (407) and the sewage pipe (408) respectively.

6. A sustainable water washable sulfur-containing tail gas treatment device according to claim 1, characterized in that: An air outlet is formed in the top of the spray tower (1), and a cyclone plate (5) is installed on the upper part of the inner wall of the spray tower (1). An air outlet is formed in the top of the spray tower (1), and a cyclone plate (5) is installed on the upper part of the inner wall of the spray tower (1).

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