A powder pneumatic conveying and spraying device

Abstract

The utility model discloses a powder pneumatic conveying and injection device, comprising a shell, a drying component for drying powder is arranged inside the shell, a block breaking structure for breaking agglomerated powder is arranged inside the drying component, a conveying mechanism for conveying powder is arranged inside the shell, and an air conveying component for conveying airflow is arranged inside the shell; the utility model is provided with a motor to drive a rotating rod and a block breaking tool to rotate, so that the block breaking tool can move continuously or intermittently, which can effectively break up agglomerates in the powder, maintain the fluidity and dispersibility of the powder, and avoid the blockage caused by powder agglomeration; by providing a heating wire, the moisture in the powder can be effectively evaporated, the powder can be prevented from getting damp and agglomerating again, and its dry state can be maintained; by maintaining the dryness and fluidity of the powder, the blockage and wear problems in the injection device are reduced, which helps to improve the adsorption efficiency and the operation stability of the injection device.

Description

Technical Field

[0001] The utility model relates to the technical field of powder pneumatic conveying and injection, in particular to a powder pneumatic conveying and injection device. Background Art

[0002] The coal burning and garbage incineration processes will produce harmful substances such as Hg, SO3, dioxins, etc., which pollute the atmospheric environment through the emission of flue gas and thus endanger human health. At present, one of the commonly used treatment methods for purifying flue gas is the adsorbent adsorption method. The generally used device is a gas-solid ejector. The adsorbent is sprayed into the flowing flue gas by pneumatic conveying, so that the adsorbent contacts and adsorbs the harmful substances to remove them, and finally removes them through dust removal equipment to achieve the purpose of purifying the flue gas.

[0003] After searching, the utility model patent with patent announcement number CN205602707U discloses a solid powder pneumatic conveying injection device, including a shell with a receiving chamber, a mixing chamber, a diffusion chamber and a conveying pipeline, and a feed port, a discharge port and an air inlet are also provided on the shell, the feed port and the discharge port are located in the receiving chamber, the air inlet is located at the front end of the receiving chamber and is connected to the nozzle arranged in the shell, and the characteristic is that: the nozzle is slidably arranged in the shell, and an elastic device is arranged at the bottom of the nozzle for automatically adjusting the distance S between the nozzle outlet and the mixing chamber inlet under the action of gas pressure. The utility model improves the efficiency of the injection device by adjusting the adjustment knob and the conveying gas pressure to change the distance between the nozzle outlet and the mixing chamber inlet. When the conveying is not smooth, the ball valve at the bottom of the ash discharge hopper is opened to discharge the materials trapped in the receiving chamber, and the blockage problem is quickly solved. The equipment has a simple structure, convenient operation and low production cost.

[0004] However, the above design still has some shortcomings. In practical applications, the powder adsorbent faces the risk of agglomeration due to moisture, which will seriously affect its adsorption efficiency and the operating stability of the injection device. To this end, we propose a powder pneumatic conveying injection device to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a powder pneumatic conveying and injection device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a powder pneumatic conveying and injection device, comprising a shell, a drying component for drying powder is arranged inside the shell, a block breaking structure for breaking agglomerated powder is arranged inside the drying component, a conveying mechanism for conveying powder is arranged inside the shell, an air conveying component for conveying airflow is arranged inside the shell, the drying component comprises an outer shell fixedly connected to the inside of the shell, an inner shell is arranged inside the outer shell, a heating wire is fixedly installed on the outer surface of the inner shell, the outer surface of the heating wire is fixedly connected to the outer surface of the outer shell, the block breaking structure comprises a motor fixedly connected to the bottom surface of the shell, the output end of the motor passes through the shell and extends to the inside of the shell, the output end of the motor is fixedly connected to a rotating rod, and the outer surface of the rotating rod is fixedly connected to a plurality of block breaking tools.

[0007] Among them, an injection pipe is fixedly installed on the inner wall of the shell, and the conveying mechanism includes a pump body fixedly connected to the inner bottom wall of the shell. The input end of the pump body is fixedly connected to an input pipe, and the end of the input pipe away from the pump body passes through the outer shell and is fixedly connected to the outer surface of the inner shell.

[0008] Wherein, the output end of the pump body is fixedly connected with an output pipe, and the top end of the output pipe is fixedly connected with the outer surface of the injection pipe.

[0009] The gas delivery assembly includes a gas injector fixedly connected to the inner bottom wall of the shell, the output end of the gas injector is fixedly connected to a gas delivery pipeline, and the end of the gas delivery pipeline away from the gas injector is fixedly connected to the outer surface of the injection pipeline.

[0010] Among them, the inner bottom wall of the shell is fixedly connected with a support block, the upper surface of the support block is fixedly connected to the outer surface of the injection pipe, the outer surface of the injection pipe is sleeved with an electric control valve, and the outer surface of the electric control valve is fixedly connected to the outer surface of the support block.

[0011] Among them, the upper surface of the inner shell passes through the shell and extends to the top of the shell, the upper surface of the inner shell is fixedly installed with a feed frame, the bottom surface of the shell is fixedly connected with four supporting legs, and the bottom end of each supporting leg is fixedly installed with a moving wheel.

[0012] A push rod is fixedly mounted on the outer surface of the shell, a controller is fixedly mounted on the upper surface of the shell, the right end of the injection pipe passes through the shell and extends to the outside of the shell, and a connecting block is fixedly mounted on the right end of the injection pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a motor to drive the rotating rod and the block breaking tool to rotate, so that the block breaking tool can continuously or intermittently move to effectively break up the lumps in the powder, maintain the fluidity and dispersibility of the powder, and avoid the blockage caused by the agglomeration of the powder. By providing a heating wire, the moisture in the powder can be effectively evaporated to prevent the powder from agglomerating again due to moisture and keep it in a dry state. By keeping the powder dry and fluid, the blockage and wear problems in the injection device are reduced, which helps to improve the adsorption efficiency and the operating stability of the injection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a powder pneumatic conveying and injection device of the utility model;

[0016] Figure 2 It is a front cross-sectional view of a powder pneumatic conveying and injection device of the utility model;

[0017] Figure 3 It is a top sectional view of a powder pneumatic conveying and injection device of the utility model;

[0018] Figure 4 It is a side sectional view of a powder pneumatic conveying and injection device of the utility model.

[0019] In the figure:

[0020] 1. Conveying mechanism; 101. Pump body; 102. Input pipeline; 103. Output pipeline;

[0021] 2. Drying component; 201. Outer shell; 202. Heating wire; 203. Inner shell;

[0022] 3. gas transmission assembly; 301. gas injector; 302. gas transmission pipeline;

[0023] 4. Block breaking structure; 401. Motor; 402. Rotating rod; 403. Block breaking tool;

[0024] 5. Injection pipe; 6. Shell; 7. Feed frame; 8. Support block; 9. Electric control valve; 10. Push rod; 11. Connecting block; 12. Support leg; 13. Moving wheel; 14. Controller. 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] See also Figure 1-4 The utility model provides a technical solution: a powder pneumatic conveying and injection device, comprising a shell 6, a drying component 2 for drying powder is arranged inside the shell 6, a block breaking structure 4 for breaking agglomerated powder is arranged inside the drying component 2, a conveying mechanism 1 for conveying powder is arranged inside the shell 6, an air delivery component 3 for conveying airflow is arranged inside the shell 6, the drying component 2 comprises an outer shell 201 fixedly connected to the inside of the shell 6, an inner shell 203 is arranged inside the outer shell 201, a heating wire 202 is fixedly installed on the outer surface of the inner shell 203, and the outer surface of the heating wire 202 is fixedly connected to the outer surface of the outer shell 201, the block breaking structure 4 comprises a motor 401 fixedly connected to the bottom surface of the shell 6, the output end of the motor 401 passes through the shell 6 and extends to the inside of the shell 6, the output end of the motor 401 is fixedly connected to a rotating rod 402, and the outer surface of the rotating rod 402 is fixedly connected to a plurality of block breaking tools 403.

[0027] Among them, an injection pipe 5 is fixedly installed on the inner wall of the shell 6, and the conveying mechanism 1 includes a pump body 101 fixedly connected to the inner bottom wall of the shell 6. The input end of the pump body 101 is fixedly connected with an input pipe 102. The end of the input pipe 102 away from the pump body 101 passes through the outer shell 201 and is fixedly connected to the outer surface of the inner shell 203. The pump body 101 conveys the powder from the input pipe 102 to the injection pipe 5 through the extraction action, which can ensure the continuous transportation of the powder and ensure the injection efficiency and adsorption effect.

[0028] The output end of the pump body 101 is fixedly connected to an output pipe 103 , and the top end of the output pipe 103 is fixedly connected to the outer surface of the injection pipe 5 .

[0029] Among them, the gas delivery component 3 includes a gas injector 301 fixedly connected to the inner bottom wall of the shell 6, and the output end of the gas injector 301 is fixedly connected to the gas delivery pipeline 302. The end of the gas delivery pipeline 302 away from the gas injector 301 is fixedly connected to the outer surface of the injection pipeline 5. By adjusting the output of the gas injector 301, the powder delivery rate can be flexibly controlled to meet different processing requirements.

[0030] Among them, the inner bottom wall of the shell 6 is fixedly connected with a support block 8, the upper surface of the support block 8 is fixedly connected to the outer surface of the injection pipe 5, the outer surface of the injection pipe 5 is sleeved with an electric control valve 9, and the outer surface of the electric control valve 9 is fixedly connected to the outer surface of the support block 8. The electric control valve 9 can achieve rapid response and adjustment to adapt to different working conditions.

[0031] Among them, the upper surface of the inner shell 203 passes through the shell 6 and extends to the top of the shell 6. A feeding frame 7 is fixedly installed on the upper surface of the inner shell 203. The feeding frame 7 can be used to prevent powder from being spilled during the feeding process. Four supporting legs 12 are fixedly connected to the bottom surface of the shell 6. A moving wheel 13 is fixedly installed at the bottom end of each supporting leg 12. The use of the moving wheel 13 can make the device more flexible and convenient for moving to another site for use.

[0032] Among them, a push rod 10 is fixedly installed on the outer surface of the shell 6, a controller 14 is fixedly installed on the upper surface of the shell 6, the right end of the injection pipe 5 passes through the shell 6 and extends to the outside of the shell 6, and a connecting block 11 is fixedly installed on the right end of the injection pipe 5.

[0033] Working principle: When in use, first move the device to the designated place of use through the coordinated use of the support legs 12 and the moving wheels 13, pour the prepared powder into the inner shell 203 through the feed frame 7, use the controller 14 to start the motor 401, use the motor 401 to drive the rotating rod 402 and the block breaking tool 403 to crush and stir the damp and agglomerated powder inside the inner shell 203, and at the same time start the heating wire 202, use the heating wire 202 to dry the powder inside the inner shell 203 to ensure that the powder remains dry before spraying, then start the pump body 101, use the pump body 101 to extract the processed powder inside the inner shell 203, and transport it to the inside of the injection pipe 5 through the output pipe 103, and at the same time start the gas injector 301, and transport the airflow to the inside of the injection pipe 5 through the gas pipe 302, which can generate high-speed airflow, effectively spray the powder into the flue gas, and improve the contact efficiency between the powder and the harmful substances.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder pneumatic conveying and spraying device, comprising a housing (6), characterized in that: The shell (6) is provided with a drying component (2) for drying powder, the drying component (2) is provided with a block breaking structure (4) for breaking agglomerated powder, the shell (6) is provided with a conveying mechanism (1) for conveying powder, the shell (6) is provided with an air conveying component (3) for conveying air flow, the drying component (2) comprises an outer shell (201) fixedly connected to the inside of the shell (6), the outer shell (201) is provided with an inner shell (203), the A heating wire (202) is fixedly mounted on the outer surface of the inner shell (203), and the outer surface of the heating wire (202) is fixedly connected to the outer surface of the outer shell (201). The block breaking structure (4) comprises a motor (401) fixedly connected to the bottom surface of the shell (6), and the output end of the motor (401) passes through the shell (6) and extends to the inside of the shell (6). The output end of the motor (401) is fixedly connected to a rotating rod (402), and the outer surface of the rotating rod (402) is fixedly connected to a plurality of block breaking cutters (403).

2. A powder pneumatic conveying and spraying device according to claim 1, characterized in that: An injection pipe (5) is fixedly mounted on the inner wall of the shell (6); the conveying mechanism (1) comprises a pump body (101) fixedly connected to the inner bottom wall of the shell (6); an input end of the pump body (101) is fixedly connected to an input pipe (102); an end of the input pipe (102) away from the pump body (101) passes through the outer shell (201) and is fixedly connected to the outer surface of the inner shell (203).

3. A powder pneumatic conveying and spraying device according to claim 2, characterized in that: The output end of the pump body (101) is fixedly connected to an output pipe (103), and the top end of the output pipe (103) is fixedly connected to the outer surface of the injection pipe (5).

4. A powder pneumatic conveying and spraying device according to claim 1, characterized in that: The gas delivery assembly (3) comprises a gas injector (301) fixedly connected to the inner bottom wall of the shell (6); the output end of the gas injector (301) is fixedly connected to a gas delivery pipeline (302); and one end of the gas delivery pipeline (302) away from the gas injector (301) is fixedly connected to the outer surface of the injection pipeline (5).

5. A powder pneumatic conveying and spraying device according to claim 1, characterized in that: A support block (8) is fixedly connected to the inner bottom wall of the shell (6), the upper surface of the support block (8) is fixedly connected to the outer surface of the injection pipe (5), the outer surface of the injection pipe (5) is sleeved with an electric control valve (9), and the outer surface of the electric control valve (9) is fixedly connected to the outer surface of the support block (8).

6. A powder pneumatic conveying and spraying device according to claim 1, characterized in that: The upper surface of the inner shell (203) passes through the outer shell (6) and extends to the top of the outer shell (6); a feed frame (7) is fixedly mounted on the upper surface of the inner shell (203); four supporting legs (12) are fixedly connected to the bottom surface of the outer shell (6); and a moving wheel (13) is fixedly mounted on the bottom end of each supporting leg (12).

7. A powder pneumatic conveying and spraying device according to claim 5, characterized in that: A push rod (10) is fixedly mounted on the outer surface of the shell (6), a controller (14) is fixedly mounted on the upper surface of the shell (6), the right end of the injection pipe (5) passes through the shell (6) and extends to the outside of the shell (6), and a connecting block (11) is fixedly mounted on the right end of the injection pipe (5).

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