Multi-stage synergistic desulfurization device for coal gas purification

Abstract

The invention relates to the technical field of coal gas purification, and discloses a multi-stage collaborative desulfurization device for coal gas purification, which comprises a shell, a gas inlet pipe, a water inlet pipe, a filter plate, a circular ring water pipe, a cylinder, a cylinder, two groups of spraying assemblies and the like, coal gas enters the shell through the gas inlet pipe, passes through the filter plate for shunting, and then is conveyed to the circular ring water pipe through the water inlet pipe; the cylinder is driven by the air cylinder to move downwards to drive the two groups of articulation pieces to rotate to a horizontal state under the action of the pull rope, and the medicament is sprayed out from the holes in the multiple surfaces of the articulation pieces, so that the device can realize multi-dimensional and multi-layer spraying, increase the gas-liquid contact area and time, eliminate the spraying blind area and improve the desulfurization efficiency; the device can be flexibly adjusted according to working conditions, has strong adaptability, reduces medicament consumption and operation cost, and is stable and reliable in structure and convenient to maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal gas purification, and particularly relates to a multi-stage collaborative desulfurization device for coal gas purification. BACKGROUND

[0002] In the desulfurization section of the coal gas purification process, the sulfur content of the coal gas is complex and fluctuates greatly, and single desulfurization equipment cannot efficiently and stably remove sulfides. The precooling tower, as a front-end equipment of the desulfurization unit, needs to cool the coal gas from the cold drum to an appropriate temperature to create stable working conditions for the subsequent multi-stage series desulfurization tower. However, the existing precooling tower has the problem of uneven spray cooling, which leads to poor coal gas cooling effect and unstable temperature control, thereby affecting the desulfurization efficiency and working condition stability of the subsequent desulfurization tower. Therefore, it is urgent to improve the structure of the precooling tower and the multi-stage collaborative desulfurization device to improve the overall effect of coal gas purification. In the coal gas purification process, the sulfur content of the coal gas is complex and fluctuates greatly, and single desulfurization equipment cannot efficiently and stably remove sulfides. Therefore, a multi-stage collaborative desulfurization device is needed to ensure the purification effect. The precooling tower, as a front-end equipment of the desulfurization unit, needs to stably cool the coal gas to an appropriate temperature. The existing precooling tower has uneven spray cooling, which easily leads to fluctuations in the working conditions of the subsequent desulfurization tower.

[0003] In view of the above and existing related technologies, the inventors believe that the following defects often exist: The existing multi-stage collaborative desulfurization device for coal gas purification has a fixed spray structure, which cannot flexibly adjust the spray range and intensity according to changes in the working conditions such as coal gas flow and sulfur content, leading to poor adaptability when dealing with complex and variable working conditions. The spray components are not reasonably distributed, and there are often blind areas, which makes the contact area between the coal gas and the desulfurization reagent small and the reaction time short, and the sulfides cannot fully react with the reagent, resulting in low desulfurization efficiency and difficult to meet the strict requirements of subsequent production and environmental protection. SUMMARY

[0004] The technical problem to be solved by the present application is that the existing coal gas purification desulfurization spray is single and has blind areas. Therefore, we propose a multi-stage collaborative desulfurization device for coal gas purification.

[0005] In order to achieve the above object, the following technical scheme is adopted in the application: A multi-stage collaborative desulfurization device for coal gas purification comprises a shell, an air inlet pipe connected to one side of the shell, a water inlet pipe connected to the other side of the shell, an air outlet pipe arranged at the top end of the shell, a drain pipe arranged at the bottom end of the shell, a filter plate arranged in the shell, and a refrigeration assembly arranged in the shell. The inside of the shell is provided with a spraying structure, which comprises a circular water pipe arranged in the shell. The circular water pipe is connected to the water inlet pipe. A cylinder is arranged in the shell. The top end of the cylinder is provided with a gas cylinder. The inside of the shell is provided with a spraying plate assembly I and a spraying plate assembly II. The spraying plate assembly I comprises a hose I connected to one side of the circular water pipe. One side of the hose I is provided with a hinge I. The surface of the hinge I is provided with a hole I. The spraying plate assembly II comprises a hose II connected to one side of the circular water pipe. One side of the hose II is provided with a hinge II. The surface of the hinge II is provided with a hole II. The length of the hinge I is less than the length of the spraying plate assembly II. The hinge I and the hinge II are distributed in a staggered manner.

[0006] Preferably, the inside of the shell is provided with a fixing ring. One side of the fixing ring is provided with a circular plate. The circular plate is connected to the gas cylinder. The gas cylinder drives the cylinder to move downward.

[0007] Preferably, the surface of the cylinder is provided with an opening. Eight openings are arranged at equal intervals. The eight openings are distributed in a staggered manner. The eight openings are distributed in two groups.

[0008] Preferably, one group of openings is provided with a spraying plate I. The spraying plate I is connected to the hinge I. One end of the hinge I is provided with a pull rope I. One end of the pull rope I is connected to the fixing ring.

[0009] Preferably, the other group of openings is provided with a spraying plate II. The spraying plate II is connected to the hinge II. One end of the hinge II is provided with a pull rope II. The pull rope II is connected to the fixing ring.

[0010] Preferably, the outside of the circular water pipe is provided with a support ring. The support ring is connected to the fixing ring. The circular water pipe is distributed in a ring shape.

[0011] Preferably, the hinge I and the hinge II are each provided with four openings at equal intervals. The length of the pull rope I is greater than the length of the pull rope II.

[0012] Preferably, a plurality of holes I are arranged at equal intervals on the hinge I. The hinge I is in an arc shape. The hinge I is provided with a plurality of holes I on multiple surfaces. Water in the hinge I is sprayed out of the plurality of holes I.

[0013] Preferably, a plurality of holes II are arranged at equal intervals on the hinge II. The hinge II is also in an arc shape. The hinge II is provided with a plurality of holes II on multiple surfaces. Water in the hinge II is sprayed out of the plurality of holes II.

[0014] Preferably, the refrigeration assembly comprises a refrigeration pipe arranged on the inner wall of the shell, and the refrigeration pipe is fixed to the inner wall of the shell by bolts.

[0015] Technical effects and advantages of the present application: By improving the desulfurization efficiency, the filter plate uniformly distributes the gas, the two groups of articulated pieces are distributed in different positions and expanded horizontally, and the multi-face opening spraying mode greatly increases the contact area and time of the gas and the reagent, effectively eliminates the spraying blind area, makes the sulfides in the gas fully react with the reagent, significantly improves the desulfurization effect, and purifies the gas quality. The purified gas can meet the strict requirements of subsequent production and environmental protection. In terms of working condition adaptability, the cylinder controls the movement of the cylinder to adjust the state of the articulated piece, and the spraying range and intensity can be flexibly adjusted according to the gas flow, sulfur content and other working conditions. It can cope with complex and variable working conditions. In terms of cost control, the dispersed design and spraying of the reagent avoid the waste of the reagent caused by uneven spraying, reduce the operating cost, in addition, the device is stable in connection, reliable in cooperation, reduces the occurrence of faults, prolongs the service life of the equipment, and the structure is reasonable and convenient to maintain and repair. BRIEF DESCRIPTION OF DRAWINGS

[0016] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts.

[0017] Fig. 1 It is a whole three-dimensional structure schematic diagram of the multi-stage collaborative desulfurization device for gas purification of the present application.

[0018] Fig. 2 It is a whole three-dimensional structure schematic diagram of the multi-stage collaborative desulfurization device for gas purification of the present application.

[0019] Fig. 3 It is a three-dimensional structure schematic diagram of the spraying structure of the multi-stage collaborative desulfurization device for gas purification of the present application.

[0020] Fig. 4 It is a three-dimensional structure schematic diagram of the spraying structure of the multi-stage collaborative desulfurization device for gas purification of the present application.

[0021] Fig. 5 It is a three-dimensional structure schematic diagram of the spraying structure of the multi-stage collaborative desulfurization device for gas purification of the present application.

[0022] Fig. 6 It is a three-dimensional structure schematic diagram of the spraying structure of the multi-stage collaborative desulfurization device for gas purification of the present application.

[0023] Figure legend: 1, shell; 2, air inlet pipe; 3, water inlet pipe; 4, refrigeration assembly; 5, air outlet pipe; 6, drain pipe; 7, filter plate; 8, spraying structure; 81, fixed ring; 82, round plate; 83, support ring; 84, circular water pipe; 85, air cylinder; 86, cylinder; 87, spraying plate assembly one; 871, spraying plate one; 872, hinged part one; 873, opening one; 874, hose one; 875, pull rope one; 88, spraying plate assembly two; 881, spraying plate two; 882, hinged part two; 883, opening two; 884, hose two; 885, pull rope two. DETAILED DESCRIPTION

[0024] It is easy to understand that, according to the technical solution of the present application, those skilled in the art can propose a variety of structural ways and implementation ways that can be replaced with each other without changing the essential spirit of the present application. Therefore, the following detailed description and the accompanying drawings are only exemplary descriptions of the technical solution of the present application, and should not be considered as the whole or as a limitation or restriction on the technical solution of the present application.

[0025] REFERENCE Figs. 1-6 As shown in the figure, the present application provides a technical solution: a multi-stage synergistic desulfurization device for coal gas purification, comprising a shell 1, an air inlet pipe 2 connected to one side of the shell 1, a water inlet pipe 3 connected to the other side of the shell 1, an air outlet pipe 5 arranged at the top end of the shell 1, a drain pipe 6 arranged at the bottom end of the shell 1, a filter plate 7 arranged inside the shell 1, and a refrigeration assembly 4 arranged inside the shell 1, the inside of the shell 1 is provided with a spraying structure 8, the spraying structure 8 comprises a circular water pipe 84 arranged inside the shell 1, the circular water pipe 84 is connected with the water inlet pipe 3, the inside of the shell 1 is provided with a cylinder 86, the top end of the cylinder 86 is provided with an air cylinder 85, the inside of the shell 1 is provided with a spraying plate assembly one 87 and a spraying plate assembly two 88, the spraying plate assembly one 87 comprises a hose one 874 connected to one side of the circular water pipe 84, one side of the hose one 874 is provided with a hinged part one 872, the surface of the hinged part one 872 is provided with an opening one 873, the spraying plate assembly two 88 comprises a hose two 884 connected to one side of the circular water pipe 84, one side of the hose two 884 is provided with a hinged part two 882, the surface of the hinged part two 882 is provided with an opening two 883, the length of the hinged part one 872 is less than the length of the spraying plate assembly two 88, and the hinged part one 872 and the hinged part two 882 are distributed in a staggered manner.

[0026] REFERENCE Figs. 1-6As shown in this embodiment: a fixing ring 81 is provided inside the outer casing 1, and a circular plate 82 is provided on one side of the fixing ring 81. The circular plate 82 is connected to a cylinder 85. The cylinder 85 drives the cylinder 86 to move downward. The surface of the cylinder 86 has eight openings at equal intervals, which are staggered and distributed in two groups. One group of openings has a spray plate 871 installed inside, which is connected to a hinge 872. One end of the hinge 872 is provided with a pull rope 875, which is connected to the fixing ring 81. The other group of openings has a spray plate 881 installed inside, which is connected to a hinge 882. One end of the hinge 882 is provided with a pull rope 885, which is connected to the fixing ring 81. A support ring is provided on the outside of the circular water pipe 84. 83. The support ring 83 is connected to the fixed ring 81. The circular water pipe 84 is distributed in a ring. There are four hinges 872 and four hinges 882 at equal intervals. The length of the pull rope 875 is greater than the length of the pull rope 885. There are several openings 873 at equal intervals. The hinge 872 is arc-shaped. Openings 873 are opened on multiple sides of the hinge 872. Water inside the hinge 872 sprays out from the openings 873. There are several openings 883 at equal intervals. The hinge 882 is also arc-shaped. Openings 883 are opened on multiple sides of the hinge 882. Water inside the hinge 882 sprays out from the openings 883. The multi-sided distribution of openings allows the agent to meet the gas from different directions. With the staggered distribution of the two sets of hinges and the horizontal deployment at different positions, the spray blind spots are effectively eliminated.

[0027] The refrigeration assembly 4 includes a refrigeration pipe disposed on the inner wall of the housing 1, and the refrigeration pipe is fixed to the inner wall of the housing 1 by bolts.

[0028] Working principle: the user by connecting the gas pipeline needs to be purified with the inlet pipe 2, so that the gas through the inlet pipe 2 into the shell 1 inside, then the gas upward through the filter plate 7 for diversion, by the agent through the inlet pipe 3 into the shell 1 inside the ring water pipe 84, ring water pipe 84 outside is provided with support ring 83, support ring 83 and fixed ring 81 are connected, the inside of fixed ring 81 is provided with round plate 82, so the ring water pipe 84 is fixedly connected with support ring 83 and fixed ring 81, the inside of ring water pipe 84 is inputted with the agent, then, because the bottom end of round plate 82 is provided with air cylinder 85, the output end of air cylinder 85 is provided with cylinder 86, one side of ring water pipe 84 is connected with hose one 874 and hose two 884, hose one 874 and hose two 884 are distributed at equal intervals, hose one 874 and hose two 884 are distributed staggered, by starting air cylinder 85 to drive the output end of cylinder 86 to move downward, because the surface of cylinder 86 is provided with opening, the opening is provided with eight openings at equal intervals, eight openings are divided into two groups, one group of opening is hinged with spray plate one 871 inside, spray plate one 871 is connected with hinge piece one 872, the surface of hinge piece one 872 is provided with opening one 873, opening one 873 is distributed on multiple sides, one side of hinge piece one 872 is provided with pull rope one 875, pull rope one 875 is connected with fixed ring 81, so that cylinder 86 moves downward, the pull rope one 875 connected with one side of hinge piece one 872 is stretched, so that one end of hinge piece one 872 is pulled up, further makes the hinge piece one 872 inside the opening rotates, in turn makes hinge piece one 872 present horizontal state, the other group of opening is provided with spray plate two 881 inside, spray plate two 881 is connected with hinge piece two 882, the surface of hinge piece two 882 is provided with opening two 883, opening two 883 is distributed on multiple sides, because one side of hinge piece two 882 is provided with pull rope two 885, one end of pull rope two 885 is connected with fixed ring 81, with the moving of cylinder 86 downward makes the hinge piece two 882 inside the opening rotates, one side of hinge piece two 882 is pulled up through pull rope two 885, in turn makes hinge piece two 882 present horizontal state, because pull rope two 885 is longer than pull rope one 875, so that cylinder 86 moves downward close to filter plate 7, in turn the agent is inputted into hinge piece one 872 and hinge piece two 882 through hose one 874 and hose two 884, in turn the agent is sprayed out through opening one 873 of hinge piece one 872 and opening two 883 of hinge piece two 882, which realizes multi-dimensional, multi-level spraying of the agent, greatly increases the contact area and contact time of the gas and the agent, the multi-sided distribution of the opening enables the agent to meet the gas from different directions, combined with the staggered distribution of the two groups of hinge pieces and the horizontal development at different positions, effectively eliminates the spraying blind area, makes the sulfur containing components in the gas more fully react with the agent, at the same time, the movement of cylinder 86 is controlled by air cylinder 85 to adjust the state of hinge piece, the spraying range and intensity can be adjusted flexibly according to the change of gas flow conditions,The device has improved adaptability to complex working conditions, improved desulfurization efficiency, can more thoroughly remove sulfides in the coal gas, and can significantly improve the quality of the purified coal gas to meet subsequent production and environmental protection requirements. Secondly, the utilization rate of the medicament is higher, the waste of medicament caused by uneven spraying is avoided, the operation cost is reduced, the parts work stably and reliably, the probability of failure is reduced, the service life of the equipment is prolonged, and maintenance and repair are facilitated.

[0029] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes shall belong to the protection scope of the present application.

Claims

1. A multi-stage synergic desulfurization device for coal gas purification, characterized in that, The utility model provides a refrigeration device, including shell (1), the air inlet pipe (2) of connecting in shell (1) one side, the water inlet pipe (3) of connecting in shell (1) the other side, set up in the top of shell (1) the air outlet pipe (5), set up in the bottom of shell (1) the drain pipe (6), set up in the inside filter plate (7) of shell (1) and set up in the inside refrigeration assembly (4) of shell (1), the inside of shell (1) is provided with spray structure (8), and spray structure (8) includes the circular ring water pipe (84) of setting up in the inside of shell (1), and the circular ring water pipe (84) is connected with water inlet pipe (3), the inside of shell (1) is provided with cylinder (86), and the top of cylinder (86) is provided with cylinder (85), the inside of shell (1) is provided with spray plate assembly one (87) and spray plate assembly two (88), and spray plate assembly one (87) includes the hose one (874) of connecting in one side of circular ring water pipe (84), and one side of hose one (874) is provided with articulated element one (872), and the surface of articulated element one (872) is provided with opening one (873), spray plate assembly two (88) includes the hose two (884) of connecting in one side of circular ring water pipe (84), and one side of hose two (884) is provided with articulated element two (882), and the surface of articulated element two (882) is provided with opening two (883), and the length of articulated element one (872) is less than the length of spray plate assembly two (88), and articulated element one (872) and articulated element two (882) are distributed in staggered.

2. The multi-stage synergic desulfurization device for coal gas purification according to claim 1, characterized in that: The inside of shell (1) is provided with fixing ring (81), and one side of fixing ring (81) is provided with round plate (82), and round plate (82) is connected with cylinder (85), and cylinder (85) drives cylinder (86) to move downwards.

3. The multi-stage synergic desulfurization device for coal gas purification according to claim 1, characterized in that: The surface of cylinder (86) is provided with opening, and eight openings are provided at equal intervals, and the eight openings are distributed in staggered, and the eight openings are distributed into two groups.

4. The multi-stage synergic desulfurization device for coal gas purification according to claim 3, characterized in that: One group of opening is provided with spray plate one (871) in the inside, and spray plate one (871) is connected with articulated element one (872), and one end of articulated element one (872) is provided with pull rope one (875), and one end of pull rope one (875) is connected with fixing ring (81).

5. The multi-stage synergic desulfurization device for coal gas purification according to claim 4, characterized in that: Another group of opening is provided with spray plate two (881) in the inside, and spray plate two (881) is connected with articulated element two (882), and one end of articulated element two (882) is provided with pull rope two (885), and pull rope two (885) is connected with fixing ring (81).

6. The multi-stage synergic desulfurization device for coal gas purification according to claim 2, characterized in that: The outside of circular ring water pipe (84) is provided with supporting ring (83), and supporting ring (83) is connected with fixing ring (81), and circular ring water pipe (84) is distributed in annular.

7. The multi-stage synergic desulfurization device for coal gas purification according to claim 5, characterized in that: Articulated element one (872) and articulated element two (882) are each provided with four at equal intervals, and the length of pull rope one (875) is greater than the length of pull rope two (885).

8. The multi-stage synergic desulfurization device for coal gas purification according to claim 1, characterized in that: Opening one (873) is provided at equal intervals, articulated element one (872) is in arc shape, and the surface of articulated element one (872) is provided with opening one (873), and water is sprayed out from the multiple openings one (873) in the inside of articulated element one (872).

9. The multi-stage synergic desulfurization device for coal gas purification according to claim 1, characterized in that: The second opening (883) is arranged at intervals, the second hinge (882) is also arc-shaped, and the second opening (883) is arranged on each surface of the second hinge (882), and water in the second hinge (882) is sprayed out from the second opening (883) arranged on each surface.

10. The multi-stage synergic desulfurization device for coal gas purification according to claim 1, characterized in that: The refrigeration assembly (4) comprises a refrigeration pipe arranged on the inner wall of the shell (1), and the refrigeration pipe is fixed on the inner wall of the shell (1) by bolts.

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