Tail gas absorption device for sodium hydrosulfide production

Abstract

The utility model relates to the technical field of tail gas absorption, and discloses a tail gas absorption device for sodium hydrosulfide production, which comprises a base plate, and an adsorption tower and a desulfurization liquid storage box which are arranged on the top surface of the base plate. According to the tail gas absorption device for sodium hydrosulfide production, through the arrangement of a turbulent flow assembly and a baffle, when the tail gas absorption device is used, tail gas enters an adsorption tower, a servo motor is started, a rotating rod drives blades to rotate, airflow is generated, the tail gas is dispersed, a conveying pump is started, and a desulfurization solution is conveyed into the adsorption tower through a spraying head; the baffle plates distributed in the adsorption tower can slow down the flowing speed of the gas and prolong the time of the tail gas in the adsorption tower, so that the desulfurization liquid fully reacts with the hydrogen sulfide in the tail gas, and the problems that the tail gas flows quickly in the adsorption tower, stays for a short time and is difficult to fully react with the desulfurization liquid are avoided; the absorption effect on the hydrogen sulfide gas in the tail gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas absorption technical field especially tail gas absorption device for sodium hydrosulfide production. BACKGROUND

[0002] Sodium hydrosulfide is an inorganic compound, and its chemical formula is NaHS. It is a white crystalline powder, easily soluble in water and alcohol. It is used as an aid in the synthesis of organic intermediates and the preparation of sulfur dyes in the dye industry, in the tanning industry for unhairing and tanning of rawhide, in the fertilizer industry for removing monomer sulfur from activated carbon desulfurizer, in the mining industry for copper ore beneficiation, and in the production of artificial fibers for sulfite dyeing. However, during the production of sodium hydrosulfide, tail gas is generated, which mainly contains toxic and irritating hydrogen sulfide, i.e., hydrogen sulfide. Therefore, a tail gas absorption device is needed to reduce its harm to the environment and human health.

[0003] The existing tail gas absorption device for sodium hydrosulfide production has the problem that the tail gas flows quickly in the adsorption tower, stays for a short time, and is difficult to fully react with the desulfurization liquid, which is not convenient for improving the tail gas absorption effect. In addition, the tail gas generated during the production of sodium hydrosulfide is generally released at high temperature, which is not convenient for improving the adsorption efficiency of subsequent tail gas and prolonging the service life of the equipment. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] The utility model aims to provide a tail gas absorption device for sodium hydrosulfide production to solve the problem of inconvenient tail gas absorption effect improvement and inconvenient improvement of subsequent tail gas adsorption efficiency and prolongation of equipment service life in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented by the following technical solution: a tail gas absorption device for sodium hydrosulfide production, comprising a base plate, an adsorption tower and a desulfurization liquid storage tank arranged on the top surface of the base plate, a turbulence component fixedly connected to one side of the adsorption tower, a plurality of baffles fixedly connected to the inner walls of the adsorption tower on both sides, a spraying component fixedly connected to the top surface of the desulfurization liquid storage tank, a cooling device and a circulating component arranged on one side of the surface of the base plate, a conveying pipe through-connected to one end of the circulating component, a cavity formed in the interior of the conveying pipe, a pre-filtering component fixedly connected to one end of the conveying pipe,

[0008] The turbulence component comprises a servo motor fixedly connected to one side of the adsorption tower, a transmission rod spline-connected to the output end of the servo motor, a rotating rod fixedly connected to one end of the transmission rod, and a plurality of groups of blades fixedly connected to the surface of the rotating rod.

[0009] The circulating assembly comprises a water storage tank arranged on one side of the surface of the substrate, and a circulating pump is arranged on the top surface of the water storage tank, and an output end of the circulating pump is connected with a connecting pipe.

[0010] As a further scheme of the present application, the spraying assembly comprises a conveying pump fixedly connected to the top surface of the desulfurization liquid storage tank, an output pipe is connected to an output end of the conveying pump, and a shunt pipe frame is fixedly connected to one end and one side of the output pipe, and a plurality of spraying heads are fixedly connected to the bottom surface of the shunt pipe frame.

[0011] As a further scheme of the present application, an input end of the cooling device is connected to one side of the surface of the conveying pipe, and an output end of the cooling device is connected to one side of the water storage tank, and the water storage tank is convenient for storing the cooling medium.

[0012] As a further scheme of the present application, the pre-filtering assembly comprises a filtering box fixedly connected to one end of the conveying pipe, and a filtering cloth and a honeycomb activated carbon are arranged in the filtering box, and the honeycomb activated carbon is convenient for pre-filtering the solid particles and impurities in the tail gas.

[0013] As a further scheme of the present application, the filtering box is fixedly connected with a mounting pipe on one side, and the other end of the mounting pipe is fixedly connected to the other side of the surface of the adsorption tower, and the mounting pipe is convenient for connecting the filtering box with the adsorption tower.

[0014] As a further scheme of the present application, an exhaust pipe is fixedly connected to the top end of the adsorption tower, and three observation windows are arranged on the surface of the adsorption tower, and the exhaust pipe is convenient for conveying the absorbed tail gas to the next process or discharging.

[0015] As a further scheme of the present application, a filter screen is arranged on the upper end in the adsorption tower, and a molecular sieve is arranged on the top surface of the filter screen, and the molecular sieve is made of a material with a specific pore structure and can screen or absorb different sizes of molecules.

[0016] (Three) beneficial effects

[0017] The tail gas absorption device for sodium hydrosulfide production has the following beneficial effects:

[0018] 1. The tail gas absorption device for sodium hydrosulfide production, through the setting of the turbulence component and the baffle, when in use, the tail gas enters into the adsorption tower, the servo motor is started, the rod is rotated with the blade and rotates, airflow is generated, the tail gas is dispersed, the delivery pump is started, the desulfurization liquid is delivered into the adsorption tower through the spray head and reacts with the hydrogen sulfide in the tail gas, the baffle distributed in the adsorption tower slows down the speed of gas flow and prolongs the time of the tail gas in the adsorption tower, so that the desulfurization liquid and the hydrogen sulfide in the tail gas fully react, the speed of the tail gas flowing in the adsorption tower is avoided to be fast, the residence time is short, and the desulfurization liquid is difficult to fully react, and the absorption effect of the hydrogen sulfide gas in the tail gas is improved.

[0019] 2. The tail gas absorption device for sodium hydrosulfide production, through the setting of the cooling equipment, the circulation component and the conveying pipe, when in use, the circulation pump and the cooling equipment are started, the circulation pump delivers the cooling medium in the water storage tank into the cavity of the conveying pipe, the cooling medium in the cavity absorbs the heat of the tail gas, the high-temperature tail gas is cooled, then the cooling equipment cools the cooling medium with heat again and circulates the cooling medium, so that the tail gas is cooled, the tail gas in the sodium hydrosulfide production is avoided to be released under high temperature, the temperature is high, the subsequent absorption of the tail gas is affected, the absorption efficiency of the subsequent tail gas is improved, and the service life of the equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a whole structure schematic view of the utility model;

[0021] Fig. 2 It is an adsorption tower split and turbulence component structure schematic view of the utility model;

[0022] Fig. 3 It is a spray component structure schematic view of the utility model;

[0023] Fig. 4 It is a circulation component and pre-filter component structure schematic view of the utility model.

[0024] In the drawing: 1, base plate;2, adsorption tower;3, desulfurization liquid storage tank;4, turbulence component;401, servo motor;402, blade;5, baffle;6, spray component;601, delivery pump;602, output pipe;603, shunt pipe support;604, spray head;7, cooling equipment;8, circulation component;801, water storage tank;802, circulation pump;803, connecting pipe;9, conveying pipe;10, pre-filter component;1001, filter box;1002, filter cloth;1003, honeycomb activated carbon;11, discharge pipe;12, filter screen;13, molecular sieve. DETAILED DESCRIPTION

[0025] 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. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] Please refer to Figs. 1 to 4 The utility model provides a kind of technical scheme: tail gas absorption device for sodium hydrosulfide production, including substrate 1 and the adsorption tower 2 and desulfurization liquid storage tank 3 of setting in substrate 1 top surface, the side fixedly connected with turbulence component 4 of adsorption tower 2, the two sides of adsorption tower 2 inner wall are respectively fixedly connected with several baffle 5, the top surface of desulfurization liquid storage tank 3 is fixedly connected with spray component 6, one side of substrate 1 surface is provided with cooling equipment 7 and circulation component 8, one end of circulation component 8 is connected with conveying pipe 9, the inside of conveying pipe 9 is provided with cavity, one end of conveying pipe 9 is fixedly connected with pre-filtering component 10,

[0027] Turbulence component 4 includes servo motor 401 fixedly connected to one side of adsorption tower 2, the output end of servo motor 401 is spline-connected with transmission rod, one end of transmission rod is fixedly connected with rotating rod, the surface of rotating rod is fixedly connected with several groups of blades 402, by the setting of turbulence component 4 and baffle 5, when using, tail gas enters into adsorption tower 2, start servo motor 401, rotating rod rotates with blade 402, generates airflow, lets tail gas disperse, starts conveying pump 601, and desulfurization liquid is conveyed into adsorption tower 2 by spray head 604, and reacts with hydrogen sulfide in tail gas, the baffle 5 distributed in the inside of adsorption tower 2 slows down the speed of gas flow, prolongs the time of tail gas in adsorption tower 2, so that desulfurization liquid and hydrogen sulfide in tail gas fully react, avoid the speed of tail gas flowing in adsorption tower 2 to be relatively fast, and the residence time is relatively short, it is difficult to fully react with desulfurization liquid, improve the absorption effect of hydrogen sulfide gas in tail gas;

[0028] Circulation component 8 includes water storage tank 801 setting in one side of substrate 1 surface, the top surface of water storage tank 801 is provided with circulating pump 802, the output end of circulating pump 802 is connected with connecting pipe 803, by the setting of cooling equipment 7, circulation component 8 and conveying pipe 9, when using, start circulating pump 802 and cooling equipment 7, circulating pump 802 conveys cooling medium in the inside of water storage tank 801 into the cavity of conveying pipe 9, and the heat of tail gas is absorbed by cooling medium in the cavity, the high-temperature tail gas is cooled, then cooling equipment 7 cools the cooling medium with heat again, and is recycled, so as to achieve the effect of cooling tail gas, avoid the release of tail gas in sodium hydrosulfide production under high temperature, temperature is relatively high, lead to influence the absorption of subsequent tail gas, improve the adsorption efficiency of subsequent tail gas and prolong the service life of equipment.

[0029] The spray assembly 6 comprises a delivery pump 601 fixedly connected to the top surface of the desulfurization liquid storage tank 3, the output end of the delivery pump 601 is throughly connected with an output pipe 602, one end of the output pipe 602 is fixedly connected with a shunt pipe bracket 603 on one side, and the bottom surface of the shunt pipe bracket 603 is fixedly connected with a plurality of spray heads 604, through the arrangement of the spray assembly 6, the desulfurization liquid is delivered into the adsorption tower 2, so that the desulfurization liquid reacts with hydrogen sulfide to treat the hydrogen sulfide;

[0030] The input end of the cooling device 7 is throughly connected to one side of the surface of the delivery pipe 9, the output end of the cooling device 7 is throughly connected to one side of the water storage tank 801, and through the arrangement of the cooling device 7, the cooling medium is cooled;

[0031] The pre-filter assembly 10 comprises a filter box 1001 fixedly connected to one end of the delivery pipe 9, and the filter box 1001 is internally provided with filter cloth 1002 and honeycomb activated carbon 1003, and through the arrangement of the pre-filter assembly 10, the impurities and solid particles generated in the process of adsorbing sodium hydrosulfide are first adsorbed, so that the subsequent adsorption effect is improved;

[0032] One side of the filter box 1001 is fixedly connected with a mounting pipe, one end of the mounting pipe is fixedly connected to the other side of the surface of the adsorption tower 2, and through the arrangement of the mounting pipe, the filter box 1001 is connected with the adsorption tower 2;

[0033] The top end of the adsorption tower 2 is fixedly connected with a discharge pipe 11, and the surface of the adsorption tower 2 is provided with three observation windows, and through the arrangement of the discharge pipe 11, the tail gas after absorption is delivered to the next process or discharged;

[0034] The upper end in the adsorption tower 2 is provided with a filter screen 12, and the top surface of the filter screen 12 is provided with a molecular sieve 13, and through the arrangement of the molecular sieve 13, the water in the gas is effectively adsorbed, and the liquid is reduced with the gas together;

[0035] The working principle of the utility model is as follows: in use, the circulating pump 802 and the cooling device 7 are started, the circulating pump 802 delivers the cooling medium in the water storage tank 801 into the cavity of the delivery pipe 9, the cooling medium in the cavity absorbs the heat of the tail gas, the high-temperature tail gas is cooled, then the cooling device 7 cools the cooling medium with heat again, and the cooling medium is recycled, in use, the tail gas enters the adsorption tower 2, the servo motor 401 is started, the rotating rod rotates with the blade 402, air flow is generated, the tail gas is dispersed, the delivery pump 601 is started, the desulfurization liquid is delivered into the adsorption tower 2 through the spray head 604, reacts with hydrogen sulfide in the tail gas, the baffle 5 distributed in the adsorption tower 2 slows down the speed of gas flow, and prolongs the time of the tail gas in the adsorption tower 2.

[0036] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, and under the premise that the technical personnel in the field understand the principle of the above-mentioned utility model, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming of the technical personnel in the field;

[0037] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the technical personnel in the field, the structure and principle thereof can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tail gas absorption device for sodium hydrosulfide production, comprising a base plate (1), an adsorption tower (2) and a desulfurization liquid storage tank (3) arranged on the top surface of the base plate (1), characterized in that: One side of the adsorption tower (2) is fixedly connected with a turbulence assembly (4), both sides of the inner wall of the adsorption tower (2) are fixedly connected with a plurality of baffles (5), the top surface of the desulfurization liquid storage tank (3) is fixedly connected with a spraying assembly (6), one side of the surface of the base plate (1) is provided with a cooling device (7) and a circulating assembly (8), one end of the circulating assembly (8) is throughly connected with a conveying pipe (9), a cavity is formed in the conveying pipe (9), one end of the conveying pipe (9) is fixedly connected with a pre-filtering assembly (10), The turbulence assembly (4) comprises a servo motor (401) fixedly connected to one side of the adsorption tower (2), the output end of the servo motor (401) is spline-connected with a transmission rod, one end of the transmission rod is fixedly connected with a rotating rod, and the surface of the rotating rod is fixedly connected with a plurality of groups of blades (402); The circulating assembly (8) comprises a water storage tank (801) arranged on one side of the surface of the base plate (1), and the top surface of the water storage tank (801) is provided with a circulating pump (802), and the output end of the circulating pump (802) is throughly connected with a connecting pipe (803).

2. The tail gas absorption apparatus for sodium hydrosulfide production according to claim 1, characterized by: The spraying assembly (6) comprises a conveying pump (601) fixedly connected to the top surface of the desulfurization liquid storage tank (3), the output end of the conveying pump (601) is throughly connected with an output pipe (602), and one end and one side of the output pipe (602) are fixedly connected with a shunt pipe rack (603), and the bottom surface of the shunt pipe rack (603) is fixedly connected with a plurality of spray heads (604).

3. The tail gas absorption apparatus for sodium hydrosulfide production according to claim 1, characterized by: The input end of the cooling device (7) is throughly connected to one side of the surface of the conveying pipe (9), and the output end of the cooling device (7) is throughly connected to one side of the water storage tank (801).

4. The tail gas absorption apparatus for sodium hydrosulfide production according to claim 1, characterized by: The pre-filtering assembly (10) comprises a filter box (1001) fixedly connected to one end of the conveying pipe (9), and the inside of the filter box (1001) is provided with filter cloth (1002) and honeycomb activated carbon (1003).

5. The tail gas absorption apparatus for sodium hydrosulfide production according to claim 4, characterized by: One side of the filter box (1001) is fixedly connected with a mounting pipe, and one end of the mounting pipe is fixedly connected to the other side of the surface of the adsorption tower (2).

6. The tail gas absorption apparatus for sodium hydrosulfide production according to claim 1, characterized by: The top end of the adsorption tower (2) is fixedly connected with a discharge pipe (11), and the surface of the adsorption tower (2) is provided with three observation windows.

7. The tail gas absorption apparatus for sodium hydrosulfide production according to claim 1, characterized by: The upper end inside the adsorption tower (2) is provided with a filter screen (12), and the top surface of the filter screen (12) is provided with a molecular sieve (13).

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