Large coal gas washing tower adopting honeycomb structure

Abstract

The utility model belongs to the technical field of gas purification, and particularly relates to a large coal gas washing tower adopting a honeycomb structure, which comprises a tower body, a coal gas inlet pipe, a coal gas outlet and a packing layer, and is characterized in that a grid plate is arranged at the bottom of the packing layer, packing baskets are tightly arranged on the grid plate according to the honeycomb structure, and a coal gas distribution pipe is arranged in the middle of the packing basket; an orifice flow distributor is arranged at the top of the filler basket, and the filler basket is filled with filler; the gas distribution pipe is provided with a vent hole, and the filler basket is provided with a vent window. The utility model has the advantages that: 1) the filler layer forms a honeycomb structure, so that the section of the tower is fully utilized; 2) the coal gas in the filler basket horizontally flows through the ventilation window, the cleaning liquid flows from top to bottom, and the filler resistance is lowest; 3) the packing basket has a unified standard specification and is good in universality; and 4) when the tower diameter needs to be increased, only the number of the packing baskets with the standard specification is increased, the problem of large-scale packing tower can be effectively solved by arranging multiple baskets, and the packing basket is very suitable for being applied to the gas washing tower with the large tower diameter.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas purification, and in particular relates to a large-scale coal gas cleaning tower adopting a honeycomb structure. Background Art

[0002] Most coke oven gas purification equipment is a packed tower, exceeding 30 meters in height, with each tower containing at least five layers of packing. The packing within the tower requires periodic replacement and cleaning annually. Traditionally, the packing is manually removed through a manhole to the ground outside the tower. After cleaning, the packing is manually placed into bags, which are then lifted into each manhole using a truck crane and manually emptied to complete the replacement.

[0003] Chinese utility model patent application number 202221104777.9 discloses a gas purification and dust removal device, comprising a scrubber, a dust removal unit, and a filter unit disposed within the scrubber; the scrubber sidewalls are provided with a first sewage outlet and a gas inlet, sequentially from bottom to top, and a gas outlet is provided at the top of the scrubber; the dust removal unit is disposed above the gas inlet for dust removal of the gas; and the filter unit is disposed above the dust removal unit for filtering the gas. The drawback of this method is that each layer of filler must be cleaned and transported to the ground, requiring significant investment in manpower and materials. Construction costs and labor intensity are high, and the construction period is long, seriously impacting the normal operation of the coke oven gas purification tower. Utility Model Content

[0004] The purpose of the utility model is to provide a large-scale gas cleaning tower with a honeycomb structure, which overcomes the shortcomings of the existing technology and adopts a gas-liquid cross-flow gas purification tower honeycomb structure. Multiple packing layers are provided in the tower, and each packing layer is composed of several regular hexagonal packing baskets. Each packing basket is a monomer structure. The honeycomb structure makes full use of the cross-section of the tower body, and the packing baskets can be easily hoisted and replaced separately.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A large-scale coal gas cleaning tower adopting a honeycomb structure comprises a tower body, a coal gas inlet pipe, a coal gas outlet and a packing layer. The packing layer is provided with at least two layers from top to bottom in the tower body. A grid plate is provided at the bottom of each packing layer. Packing baskets are closely arranged on the grid plate in a honeycomb structure. A coal gas distribution pipe is provided in the center of the packing basket, and the top of the coal gas distribution pipe is sealed. A hole flow distributor is provided on the top of the packing basket, and the packing basket is filled with packing. Ventilation holes are provided on the gas distribution pipe, and ventilation windows are provided on the packing basket.

[0007] Furthermore, the thickness of the filler at the top of the gas distribution pipe is not less than the maximum distance between the gas distribution pipe and the inner wall of the filler basket.

[0008] Furthermore, an inward-inverted liquid baffle is provided on the upper edge of the vent window.

[0009] Furthermore, the hole flow distributor is a dish-shaped structure, the bottom hole diameter is 5-10 mm, and the number of holes distributed per square centimeter is 120-180.

[0010] Furthermore, at least one layer of blocking plate is provided in the gas distribution pipe, and ventilation holes are respectively provided on the gas distribution pipes above and below the blocking plate.

[0011] Furthermore, the packing basket is a standard regular hexagonal column, which is easy to replace.

[0012] Furthermore, the ventilation windows on the adjacently installed filling baskets are positioned correspondingly, and the gas flows horizontally.

[0013] Furthermore, at least one layer of baffles is provided in the gap between the tower body and the filler basket, so that the coal gas forms a forced zigzag flow direction.

[0014] Furthermore, the gas inlet pipe is located below the grid plate of the lowest filler layer of the tower body, and the gas inlet pipe is arranged to penetrate the tower body, and is connected to the gas distribution pipe passing through.

[0015] Furthermore, the blocking plates and the deflectors are staggered in height direction.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1) Multiple packing layers are arranged in the tower body. Each packing layer includes multiple hexagonal packing baskets arranged side by side to form a honeycomb structure. This fully utilizes the tower cross section and the packing baskets are easy to lift and replace.

[0018] 2) The gas in the packing basket flows horizontally through the ventilation windows, and the cleaning liquid flows from top to bottom, and the packing resistance is the lowest;

[0019] 3) All stuffing baskets are of unified standard specifications and have good versatility;

[0020] 4) When the tower diameter needs to be increased, the number of standard packing baskets can be increased in each packing layer. The multi-basket setting can effectively solve the large-scale problem of the packed tower and is very suitable for the application of large-diameter gas scrubbing towers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 Schematic cross-section diagram;

[0023] Figure 3 yes Figure 1 Schematic diagram of the partial structure of the central ventilator.

[0024] In the figure: 1-tower body, 2-gas inlet pipe, 3-gas outlet, 4-filling basket, 5-gas distribution pipe, 6-hole flow distributor, 7-filling, 8-blocking plate, 9-baffle, 10-grid plate, 11-ventilation window, 12-liquid baffle. DETAILED DESCRIPTION

[0025] The technical solutions of the present invention will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the specific embodiments required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some implementation methods of the utility model. For ordinary technicians in this field, other specific embodiments can be obtained based on these specific embodiments without paying creative work.

[0027] The components of the embodiments of the present invention generally described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0028] See Figure 1-3 , is a schematic structural diagram of an embodiment of a large-scale gas cleaning tower using a honeycomb structure of the present invention, comprising a tower body 1, a gas inlet pipe 2, a gas outlet 3, and a packing layer. The packing layer is provided with at least two layers from top to bottom in the tower body 1. A grid plate 10 is provided at the bottom of each packing layer. Packing baskets 4 are tightly arranged on the grid plate 10 in a honeycomb structure. A gas distribution pipe 5 is centrally provided in the packing basket 4, and the top of the gas distribution pipe 5 is sealed. A hole flow distributor 6 is provided on the top of the packing basket 4. Figure 2 Only one middle hole flow distributor 6 is shown, but in fact each filler basket 4 has one on the top. The bottom of the hole flow distributor 6 is filled with filler 7; a vent hole is opened on the gas distribution pipe 5, and a vent window 11 is opened on the filler basket 4.

[0029] The thickness of the filler 7 at the top of the gas distribution pipe 5 is not less than the maximum distance between the gas distribution pipe 5 and the inner wall of the filler basket 4 .

[0030] The vent window 11 is provided with an inwardly tilted liquid baffle 12 to prevent the cleaning liquid from overflowing.

[0031] The orifice distributor 6 is a dish-shaped structure with a bottom aperture of 5-6 mm and 130-160 orifices per square centimeter. At least one layer of blocking plate 8 is installed within the gas distribution pipe 5. Ventilation holes are provided on the gas distribution pipe 5 above and below the blocking plate 8 to provide a channel for gas flow.

[0032] The packing basket 4 is a unified standard part, which is easy to replace. During the operation of the hole flow distributor 6, a certain liquid level is formed on the upper surface to evenly distribute the cleaning liquid and prevent the liquid seal gas from overflowing from the top of the packing basket 4.

[0033] The vent windows 11 on the adjacently installed filling baskets 4 are positioned correspondingly, so that the gas flows horizontally.

[0034] At least one layer of baffles 9 is provided in the gap between the tower body 1 and the filler basket 4 to force the coal gas to flow in a tortuous direction.

[0035] The gas inlet pipe 2 is located below the grid plate 10 of the bottom packing layer of the tower body 1 . The gas inlet pipe 2 is arranged to penetrate the tower body 1 and is connected to the gas distribution pipe 5 passing through.

[0036] The blocking plates and the baffles 9 are staggered in the height direction, so that the gas flows horizontally through the vents 11, and the cleaning liquid flows from top to bottom, and the resistance of the packing is the lowest; the blocking plates 8 in the gas distribution pipe 5 cooperate with the baffles 9 in the tower to control the flow direction of the gas, forming a baffled flow of the gas through the packing layer, providing the longest purified gas channel.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-scale gas cleaning tower with a honeycomb structure, comprising a tower body, a gas inlet pipe, a gas outlet and a packing layer, characterized in that: The packing layer is provided with at least two layers from top to bottom in the tower body, and a grid is provided at the bottom of each packing layer, on which packing baskets are tightly arranged in a honeycomb structure, a gas distribution pipe is provided in the center of the packing basket, and the top of the gas distribution pipe is sealed; a hole flow distributor is provided on the top of the packing basket, and the packing basket is filled with packing; a vent is provided on the gas distribution pipe, and a vent window is provided on the packing basket.

2. A large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: The thickness of the filler at the top of the gas distribution pipe is not less than the maximum distance between the gas distribution pipe and the inner wall of the filler basket.

3. The large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: An inward-turned liquid baffle is provided on the upper edge of the vent window.

4. The large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: The hole flow distributor is a dish-shaped structure, the bottom hole diameter is 5-10 mm, and the number of holes distributed per square centimeter is 120-180.

5. The large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: At least one layer of blocking plate is arranged in the gas distribution pipe, and ventilation holes are respectively arranged on the gas distribution pipes above and below the blocking plate.

6. The large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: The packing basket is a standard regular hexagonal column, which is easy to replace.

7. The large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: The vent windows on the adjacently installed filler baskets are positioned correspondingly, and the gas flows horizontally.

8. The large-scale gas cleaning tower with a honeycomb structure according to claim 5, characterized in that: At least one layer of baffles is provided in the gap between the tower body and the filler basket, so that the coal gas forms a forced zigzag flow direction.

9. The large-scale gas cleaning tower with a honeycomb structure according to claim 1, characterized in that: The gas inlet pipe is located below the grid plate of the lowest filler layer of the tower body, and the gas inlet pipe is arranged through the tower body and is connected to the gas distribution pipe passing through.

10. The large-scale gas cleaning tower with a honeycomb structure according to claim 8, characterized in that: The blocking plates and the deflectors are staggered in height direction.

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