阅读说明：本技术 一种新型高炉煤气干法立式脱硫塔 (Novel blast furnace gas dry method vertical desulfurizing tower ) 是由 安忠义 杨猛 龙志峰 于 2021-03-10 设计创作，主要内容包括：本发明公开了一种新型高炉煤气干法立式脱硫塔,涉及高炉煤气脱硫技术领域,为解决高炉煤气流量大、压力低,不宜采用多层填料,但多塔占地面积大的问题；本发明包括塔体、高炉煤气进气管、高炉煤气出气管、解吸气进气管和解吸气出气管,塔体内部从下至上依次设有若干个吸附室,相邻的吸附室之间固设有隔断板彼此密闭隔开,每个吸附室中部设有一层填料层,每个吸附室的填料层上方一侧和下方一侧分别开设有气口一和气口二,二者任意一个连通至高炉煤气进气管和解吸气出气管,另一个连通至高炉煤气出气管和解吸气进气管；本发明占地面积小,脱硫效率好,适用于高炉煤气流量大、压力低的特点。(The invention discloses a novel vertical blast furnace gas dry-method desulfurizing tower, relates to the technical field of blast furnace gas desulfurization, and aims to solve the problems that the flow of blast furnace gas is large, the pressure is low, multilayer fillers are not suitable for being adopted, and the occupied area of a plurality of towers is large; the invention comprises a tower body, a blast furnace gas inlet pipe, a blast furnace gas outlet pipe, a desorption gas inlet pipe and a desorption gas outlet pipe, wherein a plurality of adsorption chambers are sequentially arranged in the tower body from bottom to top, partition plates are fixedly arranged between the adjacent adsorption chambers and are hermetically separated from each other, a packing layer is arranged in the middle of each adsorption chamber, a gas port I and a gas port II are respectively arranged on one side above and one side below the packing layer of each adsorption chamber, any one of the gas port I and the gas port II is communicated with the blast furnace gas inlet pipe and the desorption gas outlet pipe, and the other gas; the invention has the characteristics of small occupied area, good desulfurization efficiency, large flow rate of blast furnace gas and low pressure.)

1. The utility model provides a novel vertical desulfurizing tower of blast furnace gas dry process, includes tower body (1), blast furnace gas intake pipe (7), blast furnace gas outlet duct (8), desorption gas intake pipe (9) and desorption gas outlet duct (10), the lower extreme of tower body (1) is equipped with base, its characterized in that: the tower body (1) is inside from supreme a plurality of adsorption chamber (2) of being equipped with in proper order down, it separates to have set firmly partition panel (4) airtight each other between adjacent adsorption chamber (2), every adsorption chamber (2) middle part is equipped with one deck packing layer (3), gas port (5) and gas port two (6) have been seted up respectively to packing layer (3) top one side and below one side of every adsorption chamber (2), two arbitrary one intercommunication is to blast furnace gas intake pipe (7) and desorption gas outlet duct (10), another intercommunication is to blast furnace gas outlet duct (8) and desorption gas intake pipe (9).

2. The novel vertical blast furnace gas dry desulfurization tower according to claim 1, characterized in that: one end of the blast furnace gas inlet pipe (7) is a blast furnace gas inlet, the other end of the blast furnace gas inlet pipe is connected with a first gas distribution pipe (71), and a plurality of gas supply pipes are connected to the pipeline of the first gas distribution pipe (71) and are respectively communicated with the first gas ports (5) of the adsorption chambers (2).

3. The novel vertical blast furnace gas dry desulfurization tower according to claim 2, characterized in that: the blast furnace gas inlet pipe (7) and the pipelines of each gas supply pipe are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the airflow direction.

4. The novel vertical blast furnace gas dry desulfurization tower according to claim 1, characterized in that: one end of the blast furnace gas outlet pipe (8) is a blast furnace gas outlet, the other end of the blast furnace gas outlet pipe is connected with a gas distribution pipe II (81), and a plurality of exhaust pipes are connected to the pipeline of the gas distribution pipe II (81) and are respectively communicated with the gas ports II (6) of the adsorption chambers (2).

5. The novel vertical blast furnace gas dry desulfurization tower according to claim 4, characterized in that: the blast furnace gas outlet pipe (8) and the pipelines of the exhaust pipes are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the airflow direction.

6. The novel vertical blast furnace gas dry desulfurization tower according to claim 1, characterized in that: one end of the desorption gas inlet pipe (9) is a desorption gas inlet, the other end of the desorption gas inlet pipe is connected with a gas distribution pipe III (91), and a plurality of branch gas inlet pipes are connected to the pipeline of the gas distribution pipe III (91) and are respectively communicated with the gas ports II (6) of the adsorption chambers (2).

7. The novel vertical blast furnace gas dry desulfurization tower according to claim 6, characterized in that: a butterfly valve and a blind plate are respectively arranged on the desorption gas inlet pipe (9) and each branch gas inlet pipe, wherein the blind plate is arranged at the rear end of the butterfly valve along the direction of the gas flow.

8. The novel vertical blast furnace gas dry desulfurization tower according to claim 1, characterized in that: one end of the desorption gas outlet pipe (10) is a desorption gas outlet, the other end of the desorption gas outlet pipe is connected with a gas distribution pipe IV (101), and a plurality of branch gas outlet pipes are connected to the pipeline of the gas distribution pipe IV (101) and are respectively communicated with the gas port I (5) of each adsorption chamber (2).

9. The novel vertical blast furnace gas dry desulfurization tower according to claim 8, characterized in that: and the desorption gas outlet pipe (10) and each branch gas outlet pipe are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the gas flow direction.

10. The novel vertical blast furnace gas dry desulfurization tower according to claim 1, characterized in that: a gas port I (5) of each adsorption chamber (2) is positioned on one side below the packing layer (3), and the gas port I (5) is communicated with a blast furnace gas inlet pipe (7) and a desorption gas outlet pipe (10); the gas port II (6) is positioned on one side above the packing layer (3), and the gas port II (6) is communicated with a blast furnace gas outlet pipe (8) and a desorption gas inlet pipe (9).

Technical Field

The invention relates to the technical field of blast furnace gas desulfurization, in particular to a novel vertical dry-method desulfurization tower for blast furnace gas.

Background

The majority of the sulfur in the blast furnace gas is expressed as H₂S is present in the form ofH₂S is converted into SO with the combustion of coal gas₂Harming the living environment of people and aiming at the SO generated after the combustion of the byproduct blast furnace gas of the iron and steel enterprises₂The problem of exceeding standard is that the tail end treatment mode is adopted in the past, namely the flue gas after the blast furnace gas is combusted is desulfurized. With the adjustment of national industrial policy, SO is treated₂The emission requirement is greatly improved, and the tail end treatment can not meet the emission requirement, so that the iron and steel enterprises need to realize the fine desulfurization of blast furnace gas from the source, and H in the producer gas₂The degree of removal of S has become an important indicator.

The traditional flue gas desulfurization mainly comprises a dry method desulfurization and a wet method desulfurization, wherein the dry method desulfurization refers to the removal of sulfide-containing gas in flue gas by using a powdery or granular absorbent, an adsorbent or a catalyst; however, blast furnace gas is different from traditional flue gas, has the particularity of large flow, low pressure, complex components, flammability and explosiveness, and further aggravates the problem of large resistance in the conventional dry desulphurization, and an induced draft fan is not suggested to be arranged, otherwise, the induced draft fan needs to operate for a long time, so that the requirement on explosion resistance is extremely high, and the induced draft effect is not as good as that of flue gas desulphurization equipment. At present, blast furnace gas desulfurization in the market adopts a multi-tower type to adapt to the characteristic of large blast furnace gas flow and low pressure and is convenient for reducing the resistance in a single tower, but the multi-tower mode causes more tower bodies and brings the defect of large occupied area, and the management and maintenance are very complicated, for example, the invention is published as CN111321015A and named as a device for blast furnace gas dry desulfurization and sulfur recycling, wherein a multi-tower type desulfurization device is disclosed, and the specification also mentions that the number of the tower bodies is 2-8 and is even more, the multi-tower device has large occupied area, the number of equipment is large, and the maintenance and management are very inconvenient, so that a novel vertical blast furnace gas dry desulfurization tower is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to provide a novel vertical dry-method blast furnace gas desulfurization tower, which aims to solve the problems that the flow rate of blast furnace gas is large, the pressure is low, multilayer packing is not suitable for being adopted, but the occupied area of a plurality of towers is large.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel vertical desulfurizing tower of blast furnace gas dry process, comprising a tower body, blast furnace gas intake pipe, blast furnace gas outlet duct, desorption gas intake pipe and desorption gas outlet duct, the lower extreme of tower body is equipped with the base, the tower body is inside from supreme a plurality of adsorption chamber that is equipped with in proper order down, it is airtight each other to separate to have set firmly the partition panel between the adjacent adsorption chamber, every adsorption chamber middle part is equipped with the one deck packing layer, gas port one and gas port two have been seted up respectively to packing layer top one side and below one side of every adsorption chamber, the two arbitrary one communicates to blast furnace gas intake pipe and desorbs gas outlet duct.

Preferably, one end of the blast furnace gas inlet pipe is a blast furnace gas inlet, the other end of the blast furnace gas inlet pipe is connected with a first gas distribution pipe, and a plurality of gas supply pipes are connected to the pipeline of the first gas distribution pipe and are respectively communicated with the first gas ports of the adsorption chambers.

Preferably, the blast furnace gas inlet pipe and the pipelines of each gas supply pipe are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the gas flow direction.

Preferably, one end of the blast furnace gas outlet pipe is a blast furnace gas outlet, the other end of the blast furnace gas outlet pipe is connected with a second gas distribution pipe, and a plurality of exhaust pipes are connected to the pipelines of the second gas distribution pipe and are respectively communicated with the second gas ports of the adsorption chambers.

Preferably, the blast furnace gas outlet pipe and the pipelines of the exhaust pipes are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the airflow direction.

Preferably, one end of the desorption gas inlet pipe is a desorption gas inlet, the other end of the desorption gas inlet pipe is connected with a gas distribution pipe III, and a plurality of branch gas inlet pipes are connected to a pipeline of the gas distribution pipe III and are respectively communicated with the gas ports II of the adsorption chambers.

Preferably, the desorbed gas inlet pipe and each branch gas inlet pipe are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the gas flow direction.

Preferably, one end of the desorption gas outlet pipe is a desorption gas outlet, the other end of the desorption gas outlet pipe is connected with a gas distribution pipe IV, and a plurality of branch gas outlet pipes are connected to the pipeline of the gas distribution pipe IV and are respectively communicated with the gas port I of each adsorption chamber.

Preferably, the desorbed gas outlet pipe and each branched outlet pipe are respectively provided with a butterfly valve and a blind plate, wherein the blind plate is arranged at the rear end of the butterfly valve along the gas flow direction.

Preferably, a gas port I of each adsorption chamber is positioned on one side below the packing layer, and the gas ports are communicated with a blast furnace gas inlet pipe and a desorption gas outlet pipe; the gas port two is positioned on one side above the packing layer and is communicated with the blast furnace gas outlet pipe and the desorption gas inlet pipe.

Compared with the prior art, the invention has the beneficial effects that:

this novel vertical desulfurizing tower of blast furnace gas dry process adopts the multi-chambered structure of single tower, can adapt to the big characteristic of blast furnace gas flow, distributes each adsorption chamber with blast furnace gas, and large-traffic blast furnace gas is equallyd divide, and flow is less in the single adsorption chamber, therefore desulfurization efficiency is good to only need the area of single tower, be convenient for maintain and manage, reduced manufacturing cost.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a tower body; 2. an adsorption chamber; 3. a filler layer; 4. a partition panel; 5. a first air port; 6. a second air port; 7. a blast furnace gas inlet pipe; 71. a first gas distributing pipe; 8. a blast furnace gas outlet pipe; 81. a second gas distributing pipe; 9. a desorption gas inlet pipe; 91. a gas distributing pipe III; 10. a desorption gas outlet pipe; 101. and (4) distributing pipes.

Detailed Description

As shown in fig. 1, a novel vertical desulfurizing tower of blast furnace gas dry process, including tower body 1, blast furnace gas intake pipe 7, blast furnace gas outlet duct 8, desorption gas intake pipe 9 and desorption gas outlet duct 10, the lower extreme of tower body 1 is equipped with the base, supreme a plurality of adsorption chamber 2 that is equipped with in proper order is down followed to tower body 1 inside, it is airtight each other to have set firmly partition panel 4 between the adjacent adsorption chamber 2, 2 middle parts of every adsorption chamber are equipped with one deck packing layer 3, gas port one 5 and gas port two 6 have been seted up respectively to 3 top one sides of packing layer and below one side of every adsorption chamber 2, the two arbitrary one communicates to blast furnace gas intake pipe 7 and desorption gas outlet duct 10, another communicates to blast furnace gas outlet duct.

Furthermore, one end of the blast furnace gas inlet pipe 7 is a gas inlet of the blast furnace gas, the other end is connected with a gas distribution pipe I71, and a plurality of gas supply pipes are connected to the pipeline of the gas distribution pipe I71 and are respectively communicated with the gas ports I5 of the adsorption chambers 2.

Further, a butterfly valve and a blind plate are respectively arranged on the blast furnace gas inlet pipe 7 and the pipelines of each gas supply pipe, wherein the blind plate is arranged at the rear end of the butterfly valve along the airflow direction.

Furthermore, one end of the blast furnace gas outlet pipe 8 is a blast furnace gas outlet, the other end is connected with a second gas distribution pipe 81, and the pipeline of the second gas distribution pipe 81 is connected with a plurality of exhaust pipes which are respectively communicated with the second gas ports 6 of the adsorption chambers 2.

Furthermore, a butterfly valve and a blind plate are respectively arranged on the blast furnace gas outlet pipe 8 and the pipelines of each exhaust pipe, wherein the blind plate is arranged at the rear end of the butterfly valve along the airflow direction.

Furthermore, one end of the desorption gas inlet pipe 9 is a desorption gas inlet, the other end is connected with a gas distribution pipe III 91, and a plurality of branch gas inlet pipes are connected to the pipeline of the gas distribution pipe III 91 and are respectively communicated with the gas ports II 6 of the adsorption chambers 2.

Further, a butterfly valve and a blind plate are respectively installed on the desorbed gas inlet pipe 9 and each branch gas inlet pipe, wherein the blind plate is installed at the rear end of the butterfly valve along the airflow direction.

Furthermore, one end of the desorption gas outlet pipe 10 is a desorption gas outlet, the other end is connected with a gas distribution pipe IV 101, and the pipeline of the gas distribution pipe IV 101 is connected with a plurality of branch gas outlet pipes which are respectively communicated with the gas ports I5 of the adsorption chambers 2.

Further, a butterfly valve and a blind plate are respectively installed on the desorbed gas outlet pipe 10 and each branch gas outlet pipe, wherein the blind plate is installed at the rear end of the butterfly valve along the gas flow direction.

Further, a gas port I5 of each adsorption chamber 2 is positioned at one side below the packing layer 3, and the gas port I5 is communicated with a blast furnace gas inlet pipe 7 and a desorption gas outlet pipe 10; the gas port two 6 is positioned at one side above the packing layer 3, and the gas port two 6 is communicated with a blast furnace gas outlet pipe 8 and a desorption gas inlet pipe 9.

In a preferred embodiment of the invention, 6 adsorption chambers are arranged in the tower body, and 6 independent spaces are respectively separated by partition plates, so that pressure drop accumulation of blast furnace gas in the desulfurization tower can be avoided, the final pressure insufficiency is avoided, and high-temperature gas is adopted as desorption gas; when the blast furnace gas desulfurization tower normally operates, butterfly valves and blind plates on the desorption gas inlet pipe, the desorption gas outlet pipe, the branch gas inlet pipe and the branch gas outlet pipe are all closed, the butterfly valves and the blind plates of the blast furnace gas inlet pipe, the blast furnace gas outlet pipe, the gas supply pipe and the gas exhaust pipe are all opened, and the blast furnace gas enters each adsorption chamber for adsorption desulfurization; when the desulfurizing tower runs for a period of time and the desulfurizing agent in the packing layer needs to be desorbed, butterfly valves and blind plates of the blast furnace gas inlet pipe, the blast furnace gas outlet pipe, the gas supply pipe and the gas exhaust pipe are closed, and butterfly valves and blind plates on the desorbed gas inlet pipe, the desorbed gas outlet pipe, the branch gas inlet pipe and the branch gas outlet pipe are opened; when normal pressure is adopted, the desulfurization of the desulfurization tower can reach 93.6 percent, and the desulfurization effect is good.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

The present invention is not described in detail, but is known to those skilled in the art.