Kiln gas sampling device with anti-blocking function

Abstract

The utility model discloses a kiln gas sampling device with an anti-blocking function, which comprises a sucking pump and a sampling pipe, the front end of the sampling pipe extends into a kiln, the rear end of the sampling pipe is fixedly connected with a shell communicated with the inside of the sampling pipe, a telescopic filtering component is mounted in the shell, a gas outlet is formed in the rear end of the shell, and a gas outlet is formed in the gas outlet. The air outlet is connected with an air extracting pump and is communicated with the interior of the filtering part, and a dust pushing part is mounted in the sampling pipe; the telescopic filtering part stretches out and draws back in a reciprocating mode, dust attached to the outer wall of the telescopic filtering part is shaken off, and then the dust is sent back to the kiln through the dust pushing part. According to the utility model, the cleaning can be realized at any time, the dust blockage can be effectively prevented, and the service life cannot be influenced by long-term high-frequency vibration and the environment cannot be influenced by high-strength noise on the basis of keeping the sampling continuity of the kiln gas.

Description

Technical Field

[0001] This utility model relates to the field of kiln gas sampling technology, specifically a kiln gas sampling device with anti-clogging function. Background Technology

[0002] When a kiln is in the calcination process, it is necessary to collect the gas inside the kiln, that is, to sample the kiln gas and analyze the gas composition (O2, CO, SO2, NOx, etc.) to scientifically, effectively and accurately analyze the combustion state inside the kiln, and then control the amount of coal injected and the amount of air (O2) injected to maintain the ratio between the two within a reasonable range, so that the kiln can achieve a more ideal combustion state. This can ensure both the calcination efficiency of the kiln and the energy-saving and emission-reduction effect of the kiln.

[0003] Currently, existing kiln gas sampling devices mainly consist of a sampling tube and an extraction pump. The sampling tube extends into the kiln, and the extraction pump is connected to the sampling tube. To filter dust, a filter, most commonly a bag filter, is usually connected between the extraction pump and the sampling tube. However, because the inside of a kiln is a high-dust environment, as sampling continues, a large amount of dust accumulates on the outer wall of the bag filter cylinder, which can clog the bag filter cylinder and thus affect the sampling efficiency of the kiln gas.

[0004] Therefore, vibrators are usually installed on the side walls of the bag filter housing. The mechanical vibration generated during operation helps to shake off dust and prevent clogging. However, the vibrator exerts external vibration on the side walls of the housing, and long-term high-frequency vibration can easily lead to metal structural fatigue, weld cracking, or deformation, thus affecting the filter's service life. Furthermore, the vibrator generates high-intensity noise during operation, impacting the environment. Utility Model Content

[0005] The purpose of this invention is to overcome the defects and shortcomings of the existing technology and provide a kiln gas sampling device with anti-clogging function, which can be cleaned as needed to effectively prevent dust blockage, ensure service life, and reduce noise pollution.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A kiln gas sampling device with anti-clogging function includes an air pump and a sampling tube extending into the kiln. The sampling tube is characterized by: a housing connected to its interior at its rear end; a retractable filter component installed inside the housing; an air outlet at the rear end of the housing; the air outlet being connected to the air pump and communicating with the interior of the filter component; and a dust pushing component installed inside the sampling tube. The retractable filter component reciprocates, shaking off dust adhering to its outer wall, which is then returned to the kiln by the dust pushing component.

[0008] Furthermore, the housing includes a T-shaped tube and a sealing plate. The bottom end of the vertical section of the T-shaped tube is closed, the front end of the horizontal section of the T-shaped tube is closed, and the rear end is open. The sealing plate is fixedly connected to the rear end of the horizontal section of the T-shaped tube.

[0009] Furthermore, the sampling tube extends horizontally from back to front through the vertical section of the T-shaped tube and is fixedly connected to it. The upper wall of the sampling tube is provided with an air passage that communicates with the interior of the T-shaped tube.

[0010] Furthermore, the retractable filter component includes an accordion-style filter bag and a cylinder. The rear side plate of the accordion-style filter bag is fixedly connected to the inner side of the sealing plate, the cylinder barrel is fixed to the outer side of the sealing plate, and the piston rod of the cylinder passes forward through the interior of the sealing plate and the accordion-style filter bag in sequence, and is fixedly connected to the front side plate of the accordion-style filter bag.

[0011] Furthermore, the air outlet is located on the sealing plate.

[0012] Furthermore, a vibrator is installed at the top of the T-shaped tube.

[0013] Furthermore, the sampling tube has an open front end and a closed rear end.

[0014] Furthermore, the dust pushing component includes an auger and a motor. The motor is installed at the closed end of the sampling tube, the auger is located inside the sampling tube, and the rear end of the auger is connected to the output shaft of the motor.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a retractable filter component and a dust pushing component between the sampling tube and the air pump. During the reciprocating extension and retraction of the retractable filter component, dust adhering to its outer wall is shaken off and then sent back to the kiln by the dust pushing component below. This allows for cleaning as needed, effectively preventing dust blockage. While maintaining the continuity of gas sampling in the kiln, this design avoids affecting the service life due to long-term high-frequency vibration and also prevents environmental impact due to high-intensity noise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the retractable filter component in this utility model when it is stretched. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] See Figure 1 , 2 A kiln gas sampling device with anti-clogging function includes an air pump (not shown in the figure) and a sampling tube 1 extending into the kiln. The rear end of the sampling tube 1 is fixedly connected to a shell communicating with its interior. A retractable filter component is installed inside the shell. An air outlet 2 is provided at the rear end of the shell. The air outlet 2 is connected to the air pump and communicates with the interior of the filter component. A dust pushing component is installed inside the sampling tube 1. The retractable filter component reciprocates to shake off the dust adhering to its outer wall, and then the dust pushing component sends it back to the kiln.

[0021] In this utility model, the shell includes a T-shaped tube 3 and a sealing plate 4. The bottom end of the vertical section of the T-shaped tube 3 is closed, the front end of the horizontal section of the T-shaped tube 3 is closed and the rear end is open, and the sealing plate 4 is fixedly connected to the rear end of the horizontal section of the T-shaped tube 3.

[0022] In this utility model, the sampling tube 1 passes horizontally from back to front through the vertical section of the T-shaped tube 3 and is fixedly connected to it. The upper side wall of the sampling tube 1 is provided with an air passage 5 that communicates with the interior of the T-shaped tube 3, so as to realize that the kiln gas enters the T-shaped tube 3 through the sampling tube 1.

[0023] In this utility model, the retractable filter component includes an accordion-style filter bag 6 and a cylinder 7. The rear side plate of the accordion-style filter bag 6 is fixedly connected to the inner side of the sealing plate 4, the cylinder barrel of the cylinder 7 is fixed to the outer side of the sealing plate 4, and the piston rod of the cylinder 7 passes forward through the interior of the sealing plate 4 and the accordion-style filter bag 6 in sequence, and is fixedly connected to the front side plate of the accordion-style filter bag 6.

[0024] Therefore, the piston rod of cylinder 7 reciprocates and extends, driving the accordion-type cloth bag 6 to reciprocate and extend, thereby shaking off the dust adhering to its outer wall and preventing the accordion-type cloth bag 6 from clogging.

[0025] In this utility model, the air outlet 2 is located on the sealing plate 4.

[0026] In this invention, a vibrator 8 is installed at the top of the T-shaped tube 3.

[0027] Therefore, vibrator 8 is used as a backup and can be turned on at regular intervals to utilize the mechanical vibration effect generated during its operation to assist in cleaning dust.

[0028] In this invention, the front end of the sampling tube 1 is open and the rear end is closed.

[0029] In this utility model, the dust pushing component includes an auger 9 and a motor 10. The motor 10 is installed at the closed end of the sampling tube 1, the auger 9 is located inside the sampling tube 1, and the rear end of the auger 9 is connected to the output shaft of the motor 10.

[0030] Therefore, the auger 9 is driven by the motor 10 to rotate, thereby sending the fallen dust back to the kiln and avoiding clogging of the sampling tube 1.

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] When in use, the air pump works to extract the gas from the kiln, which then enters the interior of the T-shaped tube 3 through the sampling tube 1 and the air passage 5. The dust is trapped by the accordion-type filter bag 6, and the kiln gas flows out through the accordion-type filter bag 6 and the air outlet 2, and is finally received by the gas analyzer.

[0033] During this process, the piston rod of cylinder 7 reciprocates and extends, driving the accordion-type cloth bag 6 to reciprocate and extend, thereby shaking off the dust adhering to its outer wall and preventing the accordion-type cloth bag 6 from clogging.

[0034] The falling dust enters the sampling tube 1 through the air hole 5. The motor 10 drives the auger 9 to rotate, so as to send the falling dust back to the kiln and avoid clogging the sampling tube 1.

[0035] When necessary, the vibrator 8 can be turned on at regular intervals to shake off the dust adhering to the outer wall of the accordion-style cloth bag 6 by utilizing the mechanical vibration effect generated during its operation.

[0036] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0037] Therefore, the above are merely preferred embodiments of this application and are not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the claims of this application are within the scope of protection of the claims of this application.

Claims

1. A kiln gas sampling device with anti-clogging function, comprising a gas pump and a sampling tube extending into the kiln interior, characterized in that: The rear end of the sampling tube is fixedly connected to a housing that communicates with its interior. A retractable filter component is installed inside the housing. An air outlet is provided at the rear end of the housing. The air outlet is connected to the air pump and communicates with the interior of the filter component. A dust pushing component is installed inside the sampling tube. The retractable filter component reciprocates to shake off the dust adhering to its outer wall, and then the dust pushing component sends it back to the kiln.

2. The kiln gas sampling device with anti-clogging function according to claim 1, characterized in that: The housing includes a T-shaped tube and a sealing plate. The bottom end of the vertical section of the T-shaped tube is closed, the front end of the horizontal section of the T-shaped tube is closed, and the rear end is open. The sealing plate is fixedly connected to the rear end of the horizontal section of the T-shaped tube.

3. A kiln gas sampling device with anti-clogging function according to claim 2, characterized in that: The sampling tube extends horizontally from back to front through the vertical section of the T-shaped tube and is fixedly connected to it. The upper wall of the sampling tube is provided with an air passage that communicates with the interior of the T-shaped tube.

4. A kiln gas sampling device with anti-clogging function according to claim 2, characterized in that: The retractable filter component includes an accordion-style filter bag and a cylinder. The rear side plate of the accordion-style filter bag is fixedly connected to the inner side of the sealing plate, and the cylinder barrel is fixed to the outer side of the sealing plate. The piston rod of the cylinder passes forward through the interior of the sealing plate and the accordion-style filter bag in sequence, and is fixedly connected to the front side plate of the accordion-style filter bag.

5. A kiln gas sampling device with anti-clogging function according to claim 2, characterized in that: The air outlet is located on the sealing plate.

6. A kiln gas sampling device with anti-clogging function according to claim 2, characterized in that: A vibrator is installed at the top of the T-shaped tube.

7. A kiln gas sampling device with anti-clogging function according to claim 1, characterized in that: The sampling tube has an open front end and a closed rear end.

8. A kiln gas sampling device with anti-clogging function according to claim 7, characterized in that: The dust pushing component includes an auger and a motor. The motor is installed at the closed end of the sampling tube, and the auger is located inside the sampling tube. The rear end of the auger is connected to the output shaft of the motor.

Images