Gas diffusing and recycling device

Abstract

The utility model relates to the technical field of efficient recovery of blast furnace diffused coal gas, in particular to a coal gas diffused recovery device, which adopts the technical scheme that the coal gas diffused recovery device comprises a purification bin, a discharge valve body and a refrigeration device body, a communicating pipe is communicated and mounted at the bottom of the purification bin, and a cover body is movably mounted at the top of the purification bin; the refrigerating device body is fixedly mounted on the outer side of the communicating pipe; the discharging valve body is fixedly installed at the bottom of the communicating pipe. According to the device, the problems that dust is raised along with steam and is difficult to filter due to evaporation of spray water when the device is used for carrying out gas purification treatment in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of efficient recovery of blast furnace vented coal gas, in particular to a coal gas venting and recovery device. Background Art

[0002] The blast furnace is made of steel plates as the furnace shell, and the shell is lined with refractory bricks. The blast furnace body is divided into five parts from top to bottom: throat, body, waist, belly, and hearth. Due to the advantages of good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor production efficiency, and low energy consumption, the iron produced by this method accounts for the vast majority of the world's total iron production. In blast furnace production, iron ore and coke solid charge materials must be continuously loaded from the top of the furnace. The blast furnace is a container for high temperature and high pressure smelting, and the ore and coke are lifted and transported to the top of the furnace by the charge car at normal temperature and pressure before being loaded into the blast furnace. The charging tank during the loading process receives the material after pressure relief and pressure equalization before distributing the material into the furnace. The gas released into the air by pressure relief is blast furnace gas. This part of gas enters the muffler on the furnace top and is discharged into the atmosphere after being silenced and dust removed. The content of toxic gas and dust in this gas is extremely high, and the calorific value discharged into the atmosphere is about 3000kJ / m3 of energy, which is extremely wasteful of energy and polluting to the environment.

[0003] Chinese utility model patent: Publication number CN215799672U discloses a blast furnace equalized pressure release gas recovery device, including a blast furnace and a box body, an air outlet pipe is installed on the right side of the box body, an air inlet pipe is installed on the left side of the box body, and the left side of the air inlet pipe is connected to the gas pipe of the blast furnace, and also includes a filtering mechanism and a spraying mechanism.

[0004] In the prior art, when CN215799672U is in use, the blast furnace pressure-equalized gas recovery device can filter dust particles in the gas through the filter screen to improve the quality of the gas. The motor drives the round rod to rotate the brush, which can clean the left outer wall of the filter screen to reduce the impact of impurities on the filter screen. The water in the water tank cavity can be sucked out by the water pump and sprayed to the bottom of the inner cavity of the box through the nozzle to wet the dust particles to prevent them from floating. The device can filter dust particles in the gas to reduce the impact of dust particles on the environment, and can wet dust particles in the inner cavity of the box to prevent them from floating in the box, which is more conducive to the promotion and use of the device. However, in actual use, the dust in the gas is deposited and filtered by spraying. However, the gas discharged from the blast furnace has a high temperature and evaporates after contacting with the spray water, which makes it difficult to effectively filter the dust in the evaporating gas. Therefore, a gas release recovery device is needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a coal gas emission and recovery device, which has the advantage of effectively filtering dust in the coal gas during coal gas recovery and purification, and solves the problem in the prior art that when the device performs coal gas purification, dust will be raised with the steam due to the evaporation of spray water and is difficult to filter.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas dispersing and recovering device, comprising a purification chamber, a connecting pipe is installed at the bottom of the purification chamber, a cover is movably installed at the top of the purification chamber, and also comprises a discharge valve body and a refrigeration device body;

[0007] The refrigeration device body is fixedly installed on the outside of the connecting pipe;

[0008] The discharge valve body is fixedly installed at the bottom of the connecting pipe.

[0009] When using a coal gas dissipation and recovery device in the technical scheme, the discharge valve body is closed, and clean water is injected into the purification bin. At this time, the refrigeration device body can be started, so that the clean water can be cooled through the conduction rod. At this time, the cover body is installed on the top of the purification bin, and the air inlet pipe is inserted in the connecting pipe. Then, after the air inlet pipe is connected and installed with the blast furnace, the coal gas can enter the connecting pipe along the air inlet pipe, and after contacting with the clean water, the dust in the coal gas can be filtered by the clean water. When the coal gas floats in the clean water, the dust in the bubbles can be prevented from being raised by the filter. At the same time, during the coal gas purification process, the clean water can be continuously cooled by the cooling mechanism body, so as to prevent the dust in the coal gas from being raised due to the heating and evaporation of the clean water. The coal gas purified by the clean water can be discharged through the exhaust pipe and recycled. After a large amount of dust accumulates in the connecting pipe, the discharge valve body can be opened regularly to replace the clean water and discharge the accumulated dust.

[0010] Preferably, a second reserved hole is opened above the rear end of the purification chamber, and an exhaust pipe is embedded in the second reserved hole.

[0011] By arranging a second reserved hole on the purification chamber and embedding an exhaust pipe in the second reserved hole, the purified gas can be discharged through the exhaust pipe during use, thereby realizing the recovery and reuse of the purified gas.

[0012] Preferably, first reserved holes are equidistantly provided on the outer wall of the connecting pipe, and an air intake pipe passes through the connecting pipe.

[0013] By setting an air inlet pipe in the connecting pipe, the coal gas can be introduced into the purification chamber through the air inlet pipe, and when clean water is injected into the purification chamber, the dust in the coal gas can be filtered by the clean water, thereby achieving the purification operation of the coal gas.

[0014] Preferably, a limiting frame is fixedly mounted on the bottom of the cover body, and the outer side of the limiting frame contacts with the inner wall of the purification bin but is not fixedly connected.

[0015] By arranging a limit frame at the bottom of the cover body, and the outer side of the limit frame contacts the inner wall of the purification chamber but is not fixedly connected, the top of the purification chamber can be sealed by the cover body during use, thereby ensuring that the gas can only be discharged through the exhaust pipe.

[0016] Preferably, conduction rods are fixedly installed at equal intervals on the refrigeration device body, and the conduction rods pass through the first reserved holes and extend into the inner side of the connecting pipe.

[0017] By fixing the conduction rod on the refrigeration device body and passing the conduction rod through the first reserved hole and extending into the connecting pipe, the clean water entering the connecting pipe can be cooled by the conduction rod when the refrigeration device body is working.

[0018] Preferably, the discharge valve body adopts a flap valve structure design, and the discharge valve body is designed in a manual valve control mode.

[0019] The unloading valve body adopts a flap valve structure design. When a large amount of dust accumulates in the connecting pipe, the unloading valve body can be opened to replace the turbid clean water and discharge the dust from the connecting pipe, thereby cleaning the purification chamber.

[0020] Preferably, the top of the air inlet pipe passes through the cover body, a filter is fixedly installed on the air inlet pipe, the filter is clamped on the inner side of the purification chamber, and the bottom end of the air inlet pipe is located above the conduction rod and does not contact the conduction rod.

[0021] By arranging a filter on the air inlet pipe, the inside of the purification chamber can be separated by the filter during use, thereby filtering the dust floating with the bubbles.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] The utility model provides an air intake pipe and inserts the air intake pipe into the connecting pipe, and then after the air intake pipe is connected and installed with the blast furnace, the coal gas can enter the connecting pipe along the air intake pipe, and after contacting with clean water, the dust in the coal gas can be filtered by the clean water, and when the coal gas floats in the clean water, the dust in the bubbles can be prevented from being raised by the filter net, and at the same time, during the coal gas purification process, the clean water can be continuously cooled by the cooling mechanism body, thereby preventing the dust in the coal gas from being raised due to the heating and evaporation of the clean water, and the coal gas purified by the clean water can be discharged through the exhaust pipe and recycled for reuse, and after a large amount of dust is accumulated in the connecting pipe, the discharge valve body can be opened regularly to replace the clean water and discharge the accumulated dust, thereby achieving the effect of effectively filtering the dust in the coal gas when recovering and purifying the coal gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 3 For the utility model Figure 2 The structural diagram of the enlarged part in the middle;

[0027] Figure 4 It is a schematic diagram of the connection structure of the purification chamber of the present utility model.

[0028] In the figure: 1. discharge valve body; 2. connecting pipe; 3. air inlet pipe; 4. cover body; 5. exhaust pipe; 6. purification chamber; 7. refrigeration device body; 8. filter screen; 9. conduction rod; 10. first reserved hole; 11. second reserved hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides an embodiment: a gas dispersing and recovering device, including a purification chamber 6, a connecting pipe 2 is installed at the bottom of the purification chamber 6, a cover body 4 is movably installed at the top of the purification chamber 6, and also includes a discharge valve body 1 and a refrigeration device body 7;

[0032] Specifically, the refrigeration device body 7 is fixedly installed on the outside of the connecting pipe 2; the discharge valve body 1 is fixedly installed at the bottom of the connecting pipe 2. By setting the air inlet pipe 3 and inserting the air inlet pipe 3 into the connecting pipe 2, after the air inlet pipe 3 is connected and installed with the blast furnace, the coal gas can enter the connecting pipe 2 along the air inlet pipe 3, and after contacting with the clean water, the dust in the coal gas can be filtered by the clean water. When the coal gas floats in the clean water, the dust in the bubbles can be prevented from being raised by the filter 8. At the same time, during the coal gas purification process, the clean water can be continuously cooled by the cooling mechanism body, thereby preventing the dust in the coal gas from being raised due to the evaporation of the clean water. The coal gas purified by the clean water can be discharged through the exhaust pipe 5 and recycled. After a large amount of dust is accumulated in the connecting pipe 2, the discharge valve body 1 can be opened regularly to replace the clean water and discharge the accumulated dust, so as to achieve the effect of effectively filtering the dust in the coal gas during the coal gas recovery and purification.

[0033] Furthermore, a second reserved hole 11 is opened above the rear end of the purification chamber 6, and the exhaust pipe 5 is embedded in the second reserved hole 11.

[0034] By setting the second reserved hole 11 on the purification chamber 6 and embedding the exhaust pipe 5 in the second reserved hole 11, the purified gas can be discharged through the exhaust pipe 5 during use, thereby realizing the recovery and reuse of the purified gas.

[0035] Furthermore, first reserved holes 10 are equidistantly provided on the outer wall of the connecting pipe 2 , and the air inlet pipe 3 passes through the connecting pipe 2 .

[0036] By setting the air inlet pipe 3 in the connecting pipe 2, the coal gas can be introduced into the purification chamber 6 through the air inlet pipe 3, and when clean water is injected into the purification chamber 6, the dust in the coal gas can be filtered by the clean water, thereby achieving the purification operation of the coal gas.

[0037] Furthermore, a limiting frame is fixedly installed at the bottom of the cover body 4, and the outer side of the limiting frame contacts the inner wall of the purification chamber 6 but is not fixedly connected.

[0038] By arranging a limit frame at the bottom of the cover body 4, and the outer side of the limit frame contacts the inner wall of the purification chamber but is not fixedly connected, the top of the purification chamber 6 can be sealed by the cover body 4 during use, thereby allowing the gas to be discharged only through the exhaust pipe 5.

[0039] Furthermore, conduction rods 9 are fixedly installed at equal intervals on the refrigeration device body 7 , and the conduction rods 9 pass through the first reserved holes 10 and extend into the inner side of the connecting pipe 2 .

[0040] By fixing the conduction rod 9 on the refrigeration device body 7 and passing the conduction rod 9 through the first reserved hole 10 and extending into the connecting pipe 2, the clean water entering the connecting pipe 2 can be cooled by the conduction rod 9 when the refrigeration device body 7 is working.

[0041] Furthermore, the discharge valve body 1 adopts a flap valve structure design, and the discharge valve body 1 adopts a manual valve control design.

[0042] The discharge valve body 1 adopts a flap valve structure design, so when a large amount of dust accumulates in the connecting pipe 2, the discharge valve body 1 can be opened to replace the turbid clean water and discharge the dust from the connecting pipe 2, thereby cleaning the purification chamber 6.

[0043] Furthermore, the top of the air inlet pipe 3 passes through the cover body 4 , and a filter screen 8 is fixedly installed on the air inlet pipe 3 . The filter screen 8 is clamped on the inner side of the purification chamber 6 , and the bottom end of the air inlet pipe 3 is located above the conduction rod 9 and does not contact the conduction rod 9 .

[0044] By arranging the filter net 8 on the air inlet pipe 3, the inside of the purification chamber 6 can be separated by the filter net 8 during use, so that the dust floating up with the bubbles can be filtered.

[0045] When the utility model is used, the discharge valve body 1 is closed, and clean water is injected into the purification bin 6. At this time, the refrigeration device body 7 can be started, so that the clean water can be cooled through the conduction rod 9. At this time, the cover body 4 is installed on the top of the purification bin 6, and the air inlet pipe 3 is inserted in the connecting pipe 2. Then, after the air inlet pipe 3 is connected and installed with the blast furnace, the coal gas can enter the connecting pipe 2 along the air inlet pipe 3. After contacting with the clean water, the dust in the coal gas can be filtered by the clean water. When the coal gas floats in the clean water, the dust in the bubbles can be prevented from being raised by the filter net 8. At the same time, during the coal gas purification process, the clean water can be continuously cooled by the cooling mechanism body, so as to prevent the dust in the coal gas from being raised due to the heating and evaporation of the clean water. The coal gas purified by the clean water can be discharged through the exhaust pipe 5 and recycled. After a large amount of dust is accumulated in the connecting pipe 2, the discharge valve body 1 can be opened regularly to replace the clean water and discharge the accumulated dust.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A gas dispersing and recovering device, comprising a purification chamber (6), a connecting pipe (2) is installed at the bottom of the purification chamber (6), and a cover (4) is movably installed at the top of the purification chamber (6), characterized in that: Also includes: A refrigeration device body (7) is fixedly mounted on the outside of the connecting pipe (2); The discharge valve body (1) is fixedly installed at the bottom of the connecting pipe (2).

2. A gas emission and recovery device according to claim 1, characterized in that: A second reserved hole (11) is provided above the rear end of the purification chamber (6), and an exhaust pipe (5) is embedded and installed in the second reserved hole (11).

3. A gas emission and recovery device according to claim 1, characterized in that: First reserved holes (10) are equidistantly provided on the outer wall of the connecting pipe (2), and an air intake pipe (3) passes through the connecting pipe (2).

4. A gas emission and recovery device according to claim 1, characterized in that: A limiting frame is fixedly mounted on the bottom of the cover body (4), and the outer side of the limiting frame contacts the inner wall of the purification bin (6) but is not fixedly connected.

5. The gas emission and recovery device according to claim 1, characterized in that: Conductive rods (9) are fixedly installed at equal intervals on the refrigeration device body (7), and the conductive rods (9) pass through the first reserved holes (10) and extend into the inner side of the connecting pipe (2).

6. A gas emission and recovery device according to claim 1, characterized in that: The discharge valve body (1) adopts a flap valve structure design, and the discharge valve body (1) adopts a manual valve control design.

7. A gas emission and recovery device according to claim 3, characterized in that: The top of the air intake pipe (3) passes through the cover body (4), a filter screen (8) is fixedly installed on the air intake pipe (3), the filter screen (8) is clamped on the inner side of the purification chamber (6), and the bottom end of the air intake pipe (3) is located above the conduction rod (9) and does not contact the conduction rod (9).

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