A spray type scrubbing tower

Abstract

The present application relates to gas purification treatment technical field, especially to a kind of spray type scrubbing tower, including tower body assembly, synthesis gas inlet component, spray component, tower plate assembly, black water outlet, grey water outlet, tower plate clean water import and synthesis gas outlet, black water outlet and grey water outlet and synthesis gas outlet are all set on tower body assembly, black water outlet and grey water outlet are located in the lower portion of tower body assembly, synthesis gas outlet is located in the upper end of tower body assembly, synthesis gas inlet component is also set on tower body assembly;Spray component includes scrubbing grey water import, water inlet pipe, upper layer spray unit and lower layer spray unit, in this way, the technical problem that the lower portion tower plate screen hole of scrubbing tower in prior art can be blocked due to the solid particles in gas and grey water scale, resulting in the need for shutdown maintenance, affect production efficiency is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas purification treatment, and particularly relates to a spray type washing tower. BACKGROUND

[0002] In the process of coal processing and chemical production, the purity and quality of coal gas as a key intermediate product are directly related to the stability of the subsequent production process and the quality of the final product. During the generation of coal gas, a large amount of dust, solid particles and other impurities are often entrained. If these impurities are not effectively treated, not only the calorific value and utilization efficiency of the coal gas will be reduced, but also the subsequent production equipment can be seriously worn. Therefore, the coal gas needs to be purified. The existing method is to treat the coal gas by a synthetic gas washing tower. The gas first contacts with washing water at the bottom of the tower, then bubbles up in the washing water, and then contacts with the grey water at the lower tower plate in a countercurrent manner, and finally is washed by clean water at the upper tower plate to achieve the purpose of dust removal of the synthetic gas.

[0003] However, in the above method, the screen holes of the lower tower plate of the washing tower are blocked due to the scaling of solid particles in the gas and the grey water, which leads to the need for shutdown for maintenance and affects the production efficiency. SUMMARY

[0004] The present application aims to provide a spray type washing tower, which aims to solve the technical problem that the screen holes of the lower tower plate of the washing tower are blocked due to the scaling of solid particles in the gas and the grey water in the prior art, which leads to the need for shutdown for maintenance and affects the production efficiency.

[0005] To achieve the above-mentioned purpose, the present application adopts a spray type washing tower, which comprises a tower body assembly, a synthetic gas inlet assembly, a spraying assembly, a tower plate assembly, a black water outlet, a grey water outlet, a tower plate clean water inlet and a synthetic gas outlet. The black water outlet, the grey water outlet and the synthetic gas outlet are all arranged on the tower body assembly. The black water outlet and the grey water outlet are located at the lower part of the tower body assembly, and the synthetic gas outlet is located at the upper end of the tower body assembly. The synthetic gas inlet assembly is also arranged on the tower body assembly.

[0006] The spraying assembly comprises a washing grey water inlet, a water inlet pipe, an upper layer spraying unit and a lower layer spraying unit. The washing grey water inlet is arranged on the tower body assembly. The water inlet pipe is in communication with the washing grey water inlet. The upper layer spraying unit is connected with the water inlet pipe through a flange. The lower layer spraying unit is connected with the upper layer spraying unit.

[0007] The distance between the upper layer spraying unit and the lower layer spraying unit is 0.7 m.

[0008] The upper spraying unit comprises a cross pipe A, two first T-shaped pipes and a plurality of first nozzles, the cross pipe A is connected with the water inlet pipe, the two first T-shaped pipes are connected with the cross pipe A, and the first nozzles are installed on the cross pipe A and the two first T-shaped pipes.

[0009] The lower spraying unit comprises a cross pipe B, two second T-shaped pipes and a plurality of second nozzles, the cross pipe A is connected with the cross pipe A, the two second T-shaped pipes are connected with the cross pipe B, and the second nozzles are installed on the cross pipe B and the two second T-shaped pipes.

[0010] The first nozzles and the second nozzles are consistent in structure, are solid cone spiral nozzles, are made of 316 stainless steel, have a spraying capacity of 5 t / h, have a coverage range of 900 mm in diameter, and can withstand a pressure range of 0.3-25 atm.

[0011] The synthetic gas inlet assembly comprises an inlet pipe, a plurality of connecting rods and a flow guide pipe, one end of each of the plurality of connecting rods is fixedly connected with the tower body assembly, the other end of each of the plurality of connecting rods is fixedly connected with the flow guide pipe, the inlet pipe is arranged on the tower body assembly, and one end of the inlet pipe is inserted into the flow guide pipe.

[0012] The tower plate assembly comprises a first tower plate, a second tower plate and a third tower plate, the first tower plate, the second tower plate and the third tower plate are arranged in the tower body assembly, and the first tower plate, the second tower plate and the third tower plate are arranged in a staggered manner from bottom to top.

[0013] The tower body assembly comprises a tower body main body and a demister, the demister is arranged on the tower body main body, and the synthetic gas outlet is arranged on the demister.

[0014] In specific use, the gas to be treated enters the tower body main body through the synthetic gas inlet assembly, is washed by bubbling overflow from the washing water at the bottom of the tower body main body, reaches the spraying assembly, at this time, the external washing grey water enters the water inlet pipe through the washing grey water inlet, is sprayed out through the upper spraying unit and the lower spraying unit, contacts the rising synthetic gas in the form of water film and mist, and the purpose of washing the synthetic gas is achieved, the synthetic gas after spraying and washing enters the tower plate assembly, contacts the clean water entering the tower plate clean water inlet in countercurrent on the tower plate assembly, is further washed and moistened, and finally the gas is discharged from the synthetic gas outlet after being dehydrated by the demister, so that the technical problem that the sieve holes of the lower tower plate of the washing tower in the prior art are blocked due to the scaling of solid particles in the gas and the grey water, the machine needs to be stopped for maintenance, and the production efficiency is affected is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0016] Figure 1 is a structural schematic diagram of a spray scrubbing tower of the present application.

[0017] Figure 2 is a partial structural schematic diagram of a spray scrubbing tower of the present application.

[0018] Figure 3 is a partial structural schematic diagram of a spray scrubbing tower of the present application. Figure 1 is an enlarged view of a partial structure at A of the spray scrubbing tower of the present application.

[0019] Figure 4 is a sectional view of a first nozzle of the present application.

[0020] Figure 5 is a spray range of an upper spray unit of the present application.

[0021] Figure 6 is a spray range of a lower spray unit of the present application.

[0022] 1 - black water outlet, 2 - grey water outlet, 3 - clean water inlet of tray, 4 - synthesis gas outlet, 5 - scrubbing grey water inlet, 6 - water inlet pipe, 7 - tower body, 8 - demister, 9 - cross pipe A, 10 - first T-shaped pipe, 11 - first nozzle, 12 - cross pipe B, 13 - second T-shaped pipe, 14 - second nozzle, 15 - gas inlet pipe, 16 - connecting rod, 17 - flow guide pipe, 18 - first tray, 19 - second tray, 20 - third tray, 21 - mounting piece, 22 - connecting block, 23 - bolt, 24 - inclined rod. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, the embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0024] Please refer to Figures 1-6 , wherein Figure 1 is a structural schematic diagram of a spray scrubbing tower of the present application. Figure 2 is a partial structural schematic diagram of a spray scrubbing tower of the present application. Figure 3 is a partial structural schematic diagram of a spray scrubbing tower of the present application. Figure 1 is an enlarged view of a partial structure at A of the spray scrubbing tower of the present application. Figure 4is a sectional view of the first nozzle of the present application. Figure 5 is the spray range of the upper layer spraying unit of the present application. Figure 6 is the spray range of the lower layer spraying unit of the present application.

[0025] The present application provides a spraying type washing tower, comprising a tower body assembly, a synthetic gas inlet assembly, a spraying assembly, a tower plate assembly, a black water outlet 1, a grey water outlet 2, a tower plate clean water inlet 3 and a synthetic gas outlet 4, wherein the black water outlet 1 and the grey water outlet 2 and the synthetic gas outlet 4 are all arranged on the tower body assembly, the black water outlet 1 and the grey water outlet 2 are located at the lower part of the tower body assembly, the synthetic gas outlet 4 is located at the upper end of the tower body assembly, and the synthetic gas inlet assembly is also arranged on the tower body assembly.

[0026] The spraying assembly comprises a washing grey water inlet 5, a water inlet pipe 6, an upper layer spraying unit and a lower layer spraying unit, wherein the washing grey water inlet 5 is arranged on the tower body assembly, the water inlet pipe 6 is in communication with the washing grey water inlet 5, the upper layer spraying unit is connected with the water inlet pipe 6 through a flange, and the lower layer spraying unit is connected with the upper layer spraying unit.

[0027] The tower body assembly comprises a tower body main body 7 and a demister 8, wherein the demister 8 is arranged on the tower body main body 7, and the synthetic gas outlet 4 is arranged on the demister 8.

[0028] For the specific embodiment, in specific use, the gas to be treated enters the tower body main body 7 through the synthetic gas inlet assembly, and is washed by bubbling overflow from the washing water at the bottom of the tower body main body 7, and then reaches the spraying assembly, at this time, the external washing grey water enters the water inlet pipe 6 through the washing grey water inlet 5, and is sprayed out through the upper layer spraying unit and the lower layer spraying unit, so as to contact with the rising synthetic gas in the form of water film and mist, so as to achieve the purpose of washing the synthetic gas, the synthetic gas after spraying and washing enters the tower plate assembly, and the clean water entering from the tower plate clean water inlet 3 counterflows on the tower plate assembly, so as to further wet and wash, and finally the gas is discharged from the synthetic gas outlet 4 after being dehydrated by the demister 8, the upper layer grey water with less solid particles at the bottom of the tower is guided out from the grey water outlet 2, and the black water with more solid particles at the lower layer is guided out from the black water outlet 1, so as to solve the technical problem that the sieve holes of the lower tower plate of the washing tower in the prior art are blocked due to the scaling of solid particles in the gas and the grey water, so that the machine needs to be stopped for maintenance, and the production efficiency is affected.

[0029] The distance between the upper layer spraying unit and the lower layer spraying unit is 0.7 m.

[0030] The upper spraying unit comprises a cross pipe A 9, two first T-shaped pipes 10 and a plurality of first nozzles 11, the cross pipe A 9 is connected with the water inlet pipe 6, the two first T-shaped pipes 10 are both connected with the cross pipe A 9, and the first nozzles 11 are installed on the cross pipe A 9 and the two first T-shaped pipes 10.

[0031] The lower spraying unit comprises a cross pipe B 12, two second T-shaped pipes 13 and a plurality of second nozzles 14, the cross pipe A 9 is connected with the cross pipe A 9, the two second T-shaped pipes 13 are both connected with the cross pipe B 12, and the second nozzles 14 are installed on the cross pipe B 12 and the two second T-shaped pipes 13.

[0032] The first nozzles 11 and the second nozzles 14 are consistent in structure, both adopt solid cone spiral nozzles, adopt 316 stainless steel material, the spraying amount is 5t / h, the coverage range is 900mm in diameter, and the pressure resistance range is 0.3-25atm.

[0033] For this specific embodiment, the washing water entering through the water inlet pipe 6 flows to the corresponding first nozzles 11 through the cross pipe A 9 and the first T-shaped pipes 10, at the same time, the cross pipe B 12 guides the washing water in the cross pipe A 9 to the two second T-shaped pipes 13, so that the plurality of first nozzles 11 and the plurality of second nozzles 14 spray washing water to contact with the synthesis gas in the form of water film and mist.

[0034] Secondly, the synthesis gas inlet assembly comprises an inlet pipe 15, a plurality of connecting rods 16 and a flow guide pipe 17, one end of the plurality of connecting rods 16 is fixedly connected with the tower body assembly, the other end of the plurality of connecting rods 16 is fixedly connected with the flow guide pipe 17, the inlet pipe 15 is arranged on the tower body assembly, and one end of the inlet pipe 15 is inserted into the flow guide pipe 17.

[0035] For this specific embodiment, the flow guide pipe 17 is supported by the plurality of connecting rods 16, and the synthesis gas to be treated enters the flow guide pipe 17 through the inlet pipe 15 and is guided to the bottom of the tower body assembly.

[0036] At the same time, the tower plate assembly comprises a first tower plate 18, a second tower plate 19 and a third tower plate 20, the first tower plate 18, the second tower plate 19 and the third tower plate 20 are all arranged in the tower body assembly, and the first tower plate 18, the second tower plate 19 and the third tower plate 20 are staggered from bottom to top.

[0037] For this specific embodiment, the washed gas successively passes through the first tray 18, the second tray 19 and the third tray 20, and is further wet washed by being contacted with clean water.

[0038] In addition, the spray washing tower further comprises a plurality of mounting members 21, a plurality of connecting blocks 22 and a plurality of bolts 23, the mounting members 21 are arranged on the tower body 7, one end of each of the connecting blocks 22 is connected with the second spray unit, and one end of each of the bolts 23 penetrates through the corresponding connecting block 22 and is screwed on the corresponding mounting member 21.

[0039] For this specific embodiment, by penetrating one end of each of the bolts 23 through the corresponding connecting block 22 and screwing on the corresponding mounting member 21, the second spray unit can be supported, and its stability can be improved.

[0040] Finally, the spray washing tower further comprises a plurality of inclined rods 24, one end of each of the inclined rods 24 is fixedly connected with the tower body 7, and the other end of each of the inclined rods 24 is fixedly connected with the corresponding mounting member 21.

[0041] For this specific embodiment, by arranging the inclined rods 24, the stability of the mounting members 21 can be improved.

[0042] When the spray washing tower of this embodiment is used, the gas to be treated enters the tower body 7 through the synthetic gas inlet assembly, is washed by bubbling out of the washing water at the bottom of the tower body 7, passes upwards to the spray assembly, at this time, the external washing grey water enters the water inlet pipe 6 through the washing grey water inlet 5, is sprayed out by the upper spray unit and the lower spray unit, and contacts the rising synthetic gas in the form of water film and mist, so that the synthetic gas is washed, the synthetic gas after spray washing enters the tray assembly, and is further wet washed by countercurrent contact with the clean water entering the tray clean water inlet 3, and finally the gas is removed from the demister 8 and discharged from the synthetic gas outlet 4, so that the technical problem that the lower tray screen holes of the washing tower in the prior art are blocked due to the scaling of solid particles in the gas and the grey water, resulting in the need for shutdown maintenance and affecting the production efficiency is solved.

[0043] In the present application, the feed conditions are shown in the following table:

[0044] Material description Synthesis gas Washed grey water Washed clean water Phase Gas phase Liquid phase suspension Liquid phase Temperature, °C 192 140 180 Pressure, MPa 2.56 3.4 3.4 Mass flow, kg / s 11.8 19.97 0.97 Volume flow, m3 / h 3 / s]]> 0.795 0.0215 0.001 CO 34.98 0 0 CO2 2.32 0 0 [H2] 10.42 0 0 [N2] 0.23 0 0 H2O 51.96 100 100 [H2S] 0.08 0 0 HCl 0.00 0 0 [COS + NH3] 0.01 0 0 CH4 0.00 0 0

[0045] The feed conditions are shown in the following table:

[0046]

[0047]

[0048] The above-described embodiments are merely preferred embodiments of the present application, and thus are not intended to limit the scope of the present application. Those skilled in the art can understand that all or part of the above-described embodiments can be implemented, and equivalent changes made thereto, without departing from the scope of the present application as defined by the claims.

Claims

1. A spray scrubbing tower, characterized in that, comprising a tower body assembly, a synthetic gas inlet assembly, a spray assembly, a tower plate assembly, a black water outlet, a grey water outlet, a tower plate clean water inlet and a synthetic gas outlet, the black water outlet and the grey water outlet and the synthetic gas outlet are all arranged on the tower body assembly, the black water outlet and the grey water outlet are located at the lower part of the tower body assembly, the synthetic gas outlet is located at the upper end of the tower body assembly, the synthetic gas inlet assembly is also arranged on the tower body assembly; the spray assembly comprises a scrubbing grey water inlet, a water inlet pipe, an upper layer spray unit and a lower layer spray unit, the scrubbing grey water inlet is arranged on the tower body assembly, the water inlet pipe is in communication with the scrubbing grey water inlet, the upper layer spray unit is connected with the water inlet pipe through a flange, and the lower layer spray unit is connected with the upper layer spray unit; the distance between the upper layer spray unit and the lower layer spray unit is 0.7m; the upper layer spray unit comprises a cross pipe A, two first T-shaped pipes and a plurality of first nozzles, the cross pipe A is connected with the water inlet pipe, two first T-shaped pipes are connected with the cross pipe A, and the first nozzles are installed on the cross pipe A and the two first T-shaped pipes; the lower layer spray unit comprises a cross pipe B, two second T-shaped pipes and a plurality of second nozzles, the cross pipe B is connected with the cross pipe A, two second T-shaped pipes are connected with the cross pipe B, and the second nozzles are installed on the cross pipe B and the two second T-shaped pipes.

2. The spray scrubbing tower of claim 1, characterized in that, the first nozzles and the second nozzles are consistent in structure, both adopt solid cone spiral nozzles, adopt 316 stainless steel material, the spray amount is 5 t / h, the coverage range is 900mm in diameter, and the pressure resistance range is 0.3~25atm.

3. The spray scrubbing tower of claim 2, characterized in that, the synthetic gas inlet assembly comprises an inlet pipe, a plurality of connecting rods and a flow guide pipe, one end of each of the plurality of connecting rods is fixedly connected with the tower body assembly, the other end of each of the plurality of connecting rods is fixedly connected with the flow guide pipe, the inlet pipe is arranged on the tower body assembly, and one end of the inlet pipe is inserted into the flow guide pipe.

4. The spray scrubbing tower of claim 3, characterized in that, the tower plate assembly comprises a first tower plate, a second tower plate and a third tower plate, the first tower plate, the second tower plate and the third tower plate are all arranged in the tower body assembly, and the first tower plate, the second tower plate and the third tower plate are arranged in a staggered manner from bottom to top.

5. The spray scrubbing tower of claim 4, characterized in that, the tower body assembly comprises a tower body and a demister, the demister is arranged on the tower body, and the synthetic gas outlet is arranged on the demister.

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