Coal mill injection system

Abstract

The utility model relates to the technical field of coal mill injection, in particular to a coal mill injection system. According to the technical scheme, the device comprises a bearing base, a mounting frame, a hopper and a fixing plate; the mounting frame and the fixing plate are welded to the top end face of the bearing base; a blowing part is mounted on the top end surface of the mounting frame; a box body is welded to the side end face of the fixing plate, and an air pump is installed at the end, away from the fixing plate, of the box body. An air inlet pipe I and an air inlet pipe II are arranged on the air pump; a fixing pipe is installed on the outer surface of the hopper in an attached mode. A discharging pipe is fixedly embedded into the bottom end face of the hopper, the first air inlet pipe and the second air inlet pipe are communicated with air of the air pump, the end, away from the air pump, of the first air inlet pipe is fixedly embedded into the box body, and a feeding pipe is fixedly embedded into the top end face of the blowing part and is communicated with the blowing part. The utility model meets the injection of the coal mill, and prevents the material from being adhered to the stock bin during injection.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mill injection, in particular to a coal mill injection system. Background Art

[0002] The pulverized coal injection system of the blast furnace uses high-pressure gas (nitrogen or air) for pressurization, fluidization and transportation. Each injection cycle is generally composed of "charging - pressurization - injection - pressure relief - charging - powder loading". The gas in the injection tank contains a certain amount of pulverized coal and cannot be discharged directly.

[0003] During pulverized coal injection, the pulverized coal bin at the kiln head is usually used for unloading. However, the pulverized coal sticks to the wall severely during unloading, and manual knocking and vibration treatment are often required. Coal breaks may occur, and knocking causes deformation of the cone and damage to the external insulation. Therefore, further improvements are needed during pulverized coal injection. Utility Model Content

[0004] The utility model aims to provide a coal mill injection system to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a coal mill injection system, including a bearing base, a mounting frame, a hopper and a fixing plate,

[0006] A mounting frame and a fixing plate are welded on the top surface of the bearing base;

[0007] A blowing member is installed on the top surface of the mounting frame;

[0008] A box body is welded to the side end surface of the fixing plate, and an air pump is installed at one end of the box body away from the fixing plate;

[0009] The air pump is provided with an air intake pipe 1 and an air intake pipe 2;

[0010] A fixing pipe is fitted on the outer surface of the hopper;

[0011] A discharge pipe is embedded and fixed on the bottom end surface of the hopper.

[0012] Preferably, the air intake pipe 1 and the air intake pipe 2 are in gas communication with the air pump, and the end of the air intake pipe 1 facing away from the air pump is embedded and fixed in the box. By embedding and fixing the end of the air intake pipe 1 facing away from the air pump in the box, a person can turn on the air pump to inlet air through the air intake pipe 2. During air intake, the gas can be supplied into the box through the air intake pipe 1, and a person can set heating components such as electric heating wires and ceramic heating tubes in the box, so that the gas can be heated after entering the box.

[0013] Preferably, a support block is welded to the bottom end surface of the bearing base, and there are four support blocks in total, and the four support blocks are distributed in a rectangular array relative to the bearing base. The support block is welded to the bottom end surface of the bearing base, so that the support block can support and fix the bearing base.

[0014] Preferably, a feed pipe is embedded and fixed on the top surface of the blowing member, and the feed pipe is connected to the blowing member. The feed pipe is connected to the blowing member, so that the material in the hopper can enter the feed pipe when it is processed through the discharge pipe, so that the material entering the feed pipe can be sprayed into the coal mill through the blowing member.

[0015] Preferably, an air outlet pipe is embedded and fixed on the inner wall of the fixed pipe, and the air outlet pipe is in gas communication with the fixed pipe. The air outlet pipe is in gas communication with the fixed pipe, so that the gas supplied into the fixed pipe can be discharged through the air outlet pipe, and the gas can blow the material adhering to the inner wall of the hopper.

[0016] Preferably, a connecting frame is welded to the side end of the outer surface of the hopper, and one end of the connecting frame away from the hopper is welded in the fixing plate. The end of the connecting frame away from the hopper is welded in the fixing plate, so that the hopper is installed and fixed on the fixing plate through the connecting frame.

[0017] Preferably, a connecting pipe is embedded and fixed on the top surface of the box, and one end of the connecting pipe facing away from the box is embedded and fixed in the fixed pipe. By embedding and fixing the end of the connecting pipe facing away from the box in the fixed pipe, the gas entering the box can be supplied to the fixed pipe through the connecting pipe.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model is provided with a blowing piece. When personnel are blowing on the coal mill, they can inject materials into the hopper and discharge them through the discharge pipe. When discharging, the material is connected with the blowing piece through the feed pipe, so that the material in the hopper can enter the feed pipe when being processed through the discharge pipe, and the material entering the feed pipe can be blown into the coal mill through the blowing piece, thereby forming a coal mill blowing system.

[0020] 2. The utility model provides a hopper. When personnel spray the coal mill, the end of the air inlet pipe 1 facing away from the air pump is embedded and fixed in the box body, so that the personnel can turn on the air pump to intake air through the air inlet pipe 2. When intake, the gas can be supplied into the box body through the air inlet pipe 1, and the personnel can set heating components such as electric heating wires and ceramic heating tubes in the box body, so that the gas entering the box body can be heated. After the gas is heated, the end of the connecting pipe facing away from the box body is embedded and fixed in the fixed pipe, so that the gas entering the box body can be supplied into the fixed pipe through the connecting pipe, and the gas is connected with the fixed pipe through the air outlet pipe, so that the gas supplied into the fixed pipe can be discharged through the air outlet pipe. When exhausting, the gas can blow the material adhered to the inner wall of the hopper to prevent the material from adhering to the inner wall and affecting the material discharge, and the heat in the gas during blowing can dry the material, thereby meeting the later coal mill spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 It is a side view structural schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0024] In the figure: 1. support block; 2. bearing base; 3. mounting frame; 4. blowing part; 5. feed pipe; 6. discharge pipe; 7. fixed pipe; 8. hopper; 9. connecting frame; 10. fixed plate; 11. box body; 12. connecting pipe; 13. air inlet pipe 1; 14. air inlet pipe 2; 15. air pump; 16. air outlet pipe. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1

[0027] like Figure 1-Figure 3 As shown, a coal mill injection system proposed in the utility model includes a bearing base 2, a mounting frame 3, a hopper 8 and a fixing plate 10.

[0028] The top surface of the bearing base 2 is welded with a mounting frame 3 and a fixing plate 10;

[0029] A blowing member 4 is mounted on the top surface of the mounting frame 3;

[0030] A box body 11 is welded to the side end surface of the fixing plate 10, and an air pump 15 is installed at one end of the box body 11 away from the fixing plate 10;

[0031] The air pump 15 is provided with an air intake pipe 13 and an air intake pipe 2 14;

[0032] A fixing pipe 7 is fitted on the outer surface of the hopper 8;

[0033] A discharge pipe 6 is embedded and fixed on the bottom end surface of the hopper 8 .

[0034] And as is well known to those skilled in the art, the provision of the blowing member 4 is commonplace and is a conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selection according to their needs or convenience.

[0035] A support block 1 is welded to the bottom end surface of the bearing base 2. There are four support blocks 1 in total, and the four support blocks 1 are distributed in a rectangular array relative to the bearing base 2. The support block 1 is welded to the bottom end surface of the bearing base 2, so that the support block 1 can support and fix the bearing base 2.

[0036] A feed pipe 5 is embedded and fixed on the top surface of the blowing piece 4, and the feed pipe 5 is connected to the blowing piece 4. The feed pipe 5 is connected to the blowing piece 4, so that the material in the hopper 8 can enter the feed pipe 5 when it is processed through the discharge pipe 6, so that the material entered into the feed pipe 5 can be coal milled through the blowing piece 4.

[0037] A connecting frame 9 is welded to the side end of the outer surface of the hopper 8, and the end of the connecting frame 9 facing away from the hopper 8 is welded in the fixed plate 10. The end of the connecting frame 9 facing away from the hopper 8 is welded in the fixed plate 10, so that the hopper 8 is installed and fixed on the fixed plate 10 through the connecting frame 9.

[0038] Based on Example 1: When personnel are spraying the coal mill, they can inject materials into the hopper 8 and discharge them through the discharge pipe 6. When discharging, they are connected with the blowing piece 4 through the feed pipe 5, so that the materials in the hopper 8 can enter the feed pipe 5 when processed through the discharge pipe 6, and the materials entered into the feed pipe 5 can be sprayed into the coal mill through the blowing piece 4.

[0039] Embodiment 2

[0040] like Figure 1-Figure 3 As shown, the coal mill injection system proposed by the utility model, compared with the first embodiment, this embodiment also includes: a bearing base 2, a mounting frame 3, a hopper 8 and a fixing plate 10,

[0041] The top surface of the bearing base 2 is welded with a mounting frame 3 and a fixing plate 10;

[0042] A blowing member 4 is mounted on the top surface of the mounting frame 3;

[0043] A box body 11 is welded to the side end surface of the fixing plate 10, and an air pump 15 is installed at one end of the box body 11 away from the fixing plate 10;

[0044] The air pump 15 is provided with an air intake pipe 13 and an air intake pipe 2 14;

[0045] A fixing pipe 7 is fitted on the outer surface of the hopper 8;

[0046] A discharge pipe 6 is embedded and fixed on the bottom end surface of the hopper 8 .

[0047] The air intake pipe 1 13 and the air intake pipe 2 14 are in gas communication with the air pump 15, and one end of the air intake pipe 13 facing away from the air pump 15 is embedded and fixed in the box 11. Through the end of the air intake pipe 13 facing away from the air pump 15, a person can turn on the air pump 15 to intake air through the air intake pipe 2 14. During intake, the gas can be supplied into the box 11 through the air intake pipe 13, and a person can set heating components such as electric heating wires and ceramic heating tubes in the box 11, so that the gas can be heated after entering the box 11.

[0048] An air outlet pipe 16 is embedded and fixed on the inner wall of the fixed pipe 7, and the air outlet pipe 16 is in gas communication with the fixed pipe 7. The air outlet pipe 16 is in gas communication with the fixed pipe 7, so that the gas supplied into the fixed pipe 7 can be discharged through the air outlet pipe 16. When discharging, the gas can blow the material adhering to the inner wall of the hopper 8.

[0049] A connecting pipe 12 is embedded and fixed on the top surface of the box body 11, and the end of the connecting pipe 12 facing away from the box body 11 is embedded and fixed in the fixed pipe 7. By embedding and fixing the end of the connecting pipe 12 facing away from the box body 11 in the fixed pipe 7, the gas entering the box body 11 can be supplied to the fixed pipe 7 through the connecting pipe 12.

[0050] Based on Example 2: When personnel are spraying the coal mill, one end of the air inlet pipe 13 facing away from the air pump 15 is embedded and fixed in the box 11, so that the personnel can turn on the air pump 15 to intake air through the air inlet pipe 2 14. When intake, the gas can be supplied into the box 11 through the air inlet pipe 13, and the personnel can set heating components such as electric heating wires and ceramic heating tubes in the box 11, so that the gas can be heated after entering the box 11. After the gas is heated, the one end of the gas facing away from the box 11 is embedded and fixed in the fixed pipe 7 through the connecting pipe 12, so that the gas entering the box 11 can be supplied into the fixed pipe 7 through the connecting pipe 12, and the gas is connected with the fixed pipe 7 through the air outlet pipe 16, so that the gas supplied into the fixed pipe 7 can be discharged through the air outlet pipe 16. When exhausting, the gas can blow the material stuck to the inner wall of the hopper 8 to prevent the material from adhering to the inner wall and affecting the material discharge, and the heat in the gas can dry the material when blowing.

[0051] 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 coal mill injection system, comprising a bearing base (2), a mounting frame (3), a hopper (8) and a fixing plate (10), characterized in that: A mounting frame (3) and a fixing plate (10) are welded to the top surface of the bearing base (2); A blowing member (4) is installed on the top surface of the mounting frame (3); A box body (11) is welded to the side end surface of the fixing plate (10), and an air pump (15) is installed at one end of the box body (11) away from the fixing plate (10); The air pump (15) is provided with an air intake pipe 1 (13) and an air intake pipe 2 (14); A fixing pipe (7) is fitted on the outer surface of the hopper (8); A discharge pipe (6) is embedded and fixed on the bottom end surface of the hopper (8).

2. A coal mill injection system according to claim 1, characterized in that: The air intake pipe 1 (13) and the air intake pipe 2 (14) are in gas communication with the air pump (15), and one end of the air intake pipe 1 (13) which is away from the air pump (15) is embedded and fixed in the box body (11).

3. A coal mill injection system according to claim 1, characterized in that: A support block (1) is welded to the bottom end surface of the bearing base (2), and there are four support blocks (1) in total, and the four support blocks (1) are distributed in a rectangular array relative to the bearing base (2).

4. A coal mill injection system according to claim 1, characterized in that: A feed pipe (5) is embedded and fixed on the top end surface of the blowing member (4), and the feed pipe (5) is connected to the blowing member (4).

5. A coal mill injection system according to claim 1, characterized in that: An air outlet pipe (16) is embedded and fixed in the inner wall of the fixed pipe (7), and the air outlet pipe (16) is in gas communication with the fixed pipe (7).

6. A coal mill injection system according to claim 1, characterized in that: A connecting frame (9) is welded to the side end of the outer surface of the hopper (8), and one end of the connecting frame (9) facing away from the hopper (8) is welded inside the fixing plate (10).

7. A coal mill injection system according to claim 1, characterized in that: A connecting pipe (12) is embedded and fixed in the top end surface of the box body (11), and one end of the connecting pipe (12) facing away from the box body (11) is embedded and fixed in the fixing pipe (7).

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