Automatic dust collector

Abstract

The present invention relates to an automatic dust collector, which belongs to the technical field of waste gas dust removal. Specifically, the front end of a cylindrical shell is equipped with a conical cylinder, the inlet of the conical cylinder is equipped with a frequency conversion fan, a sealing plate is arranged between the conical cylinder and the cylindrical shell, a plurality of conveying pipes are arranged on the upper part of the sealing plate, a speed reduction and sedimentation component is arranged in the conical cylinder, a dust outlet pipe is arranged at the bottom of the conical cylinder, a spring door is arranged on the dust outlet pipe, a fixing frame is arranged in the middle of the cylindrical shell, a first filter is arranged on the air inlet side of the fixing frame, a magnetic filter is arranged on the air outlet side, an inclined partition frame is further arranged between the fixing frame and the sealing plate, a second filter is arranged on the inclined partition frame, a discharge collection pipe is arranged at the bottom of the cylindrical shell, a switching flap valve and a third filter are arranged in sequence at the rear of the fixing frame, and an upper spiral exhaust pipe is arranged at the rear of the third filter. The present invention has strong dust removal ability, low equipment resistance, small footprint and low maintenance workload.

Description

Technical Field

[0001] The invention relates to an automatic dust collector and belongs to the technical field of waste gas dust removal. Background Art

[0002] Currently, existing coking plants generate large amounts of dusty waste gas, which requires dust removal before discharge. The conventional treatment method is to use bag filters. However, bag filters have high resistance, cannot adjust fan power according to exhaust gas volume, require full load operation, consume high energy, occupy a large area, and are difficult to maintain. Summary of the Invention

[0003] In order to solve the technical problems existing in the prior art, the present invention provides an automatic dust collector with strong dust removal ability, low equipment resistance, small footprint and low maintenance workload.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is an automatic dust collector, comprising a cylindrical shell and a variable frequency fan, a conical cylinder is installed at the front end of the cylindrical shell, a variable frequency fan is installed at the inlet of the conical cylinder, a sealing plate is provided between the conical cylinder and the cylindrical shell, a plurality of conveying pipes are installed on the upper part of the sealing plate, a speed reduction and sedimentation component is provided in the conical cylinder, a dust outlet pipe is provided at the bottom of the conical cylinder, a spring door is installed on the dust outlet pipe, and a fixing frame is installed in the middle of the cylindrical shell. A first filter is installed on the air inlet side of the fixed frame, and a magnetic filter is installed on the air outlet side. An inclined partition frame is also installed between the fixed frame and the sealing plate, and a second filter is installed on the inclined partition frame. The second filter is located at the air outlet end of the conveying pipe. A discharge collection pipe is installed at the bottom of the cylindrical shell, and the discharge collection pipe is located below the fixed frame and the inclined partition frame. A switching valve and a third filter are installed in sequence at the rear of the fixed frame, and an upper spiral exhaust pipe is installed at the rear of the third filter.

[0005] Preferably, the speed reduction and sedimentation assembly includes a conical material guide pipe and rotating blades. The conical material guide pipe is connected to the air outlet end of the variable frequency fan. A dust outlet gap is provided between the conical material guide pipe and the conical cylinder. A plurality of rotating blades are installed in the conical material guide pipe through a rotating shaft. A plurality of through holes are provided on the wall of the conical material guide pipe. An annular support frame is also installed on the inner wall of the conical material guide pipe. A conical dust shield is installed on the annular support frame. The conical dust shield is provided at the front end of the rotating blade.

[0006] Preferably, the apertures of the second filter screen, the first filter screen and the third filter screen decrease in sequence.

[0007] Compared with the prior art, the present invention has the following technical effects: the present invention has a simple structure, reasonable design, easy installation, and low equipment failure rate. After operation, the exhaust gas can be dusted with high quality, and the operating speed can be controlled, which has a good effect on saving the company's energy. At the same time, the dust collector has the characteristics of strong dust removal ability, low equipment resistance, small footprint, and low maintenance workload. The dust removal fan adopts variable frequency drive, and the air volume can be adjusted according to the amount of dust. When the dust amount is small, a large amount of electricity can be saved. The dust collector adopts a new structural design, and the switching valve can freely increase or decrease the number of dust removal times according to the type of dust. It can also be disassembled and repaired in sections without stopping production. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0009] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0010] like Figure 1 As shown, the automatic dust collector comprises a cylindrical shell 1 and a variable frequency fan 2, a conical cylinder 3 is installed at the front end of the cylindrical shell 1, a variable frequency fan 2 is installed at the inlet of the conical cylinder 3, a sealing plate 4 is provided between the conical cylinder 3 and the cylindrical shell 1, a plurality of conveying pipes 5 are installed on the upper part of the sealing plate 4, a speed reduction and sedimentation component 6 is provided in the conical cylinder 3, a dust outlet pipe 7 is provided at the bottom of the conical cylinder 3, a spring door 8 is installed on the dust outlet pipe 7, a fixing frame 9 is installed in the middle of the cylindrical shell 1, and a first air inlet side of the fixing frame 9 is installed. A filter 10, a magnetic filter 11 is installed on the air outlet side, an inclined partition frame 12 is also installed between the fixed frame 9 and the sealing plate 4, a second filter 13 is installed on the inclined partition frame 12, the second filter 13 is located at the air outlet end of the conveying pipe, a discharge collection pipe 14 is installed at the bottom of the cylindrical shell 1, the discharge collection pipe 14 is located below the fixed frame and the inclined partition frame, a switching valve 15 and a third filter 16 are installed in sequence at the rear of the fixed frame 9, and an upper spiral exhaust pipe 17 is installed at the rear of the third filter 16.

[0011] The main body of the present invention adopts a cylindrical structure design. A conical cylinder is installed at the front end of the cylindrical shell. A sealing plate is provided between the cylindrical shell and the conical cylinder, forming a first filter chamber within the conical cylinder. A deceleration and sedimentation assembly 6 is installed in the first filter chamber, and a dust outlet pipe and a spring-loaded door are provided at the bottom. A switching valve is installed in the cylindrical shell, dividing the cylindrical shell into a second filter chamber and a third filter chamber. The second filter chamber is equipped with an inclined partition frame and a first filter screen and a second filter screen, while the third filter chamber is equipped with a third filter screen. This multi-chamber structure can fully filter dust and also adjust the number of filtration times according to the amount of exhaust gas. Specifically, during use, the variable frequency fan drives the exhaust gas into the conical cylinder. The deceleration and sedimentation assembly inside the conical cylinder slows down and settles the exhaust gas, filtering out larger dust particles. Dust particles accumulate in the dust outlet pipe. When a certain amount of dust is accumulated, the spring-loaded door opens to remove the dust. The exhaust gas then enters the second filter chamber through the delivery pipe and is filtered by the first and second filters in the second filter chamber. When the switching valve opens, the exhaust gas is filtered through the third filter and finally discharged through the upper spiral exhaust pipe. The apertures of the second filter 13, the first filter 10, and the third filter 16 are successively reduced to ensure sufficient filtration of the exhaust gas. The switching valve is a three-way flap valve, and its opening and closing can be controlled according to the exhaust gas volume. When the exhaust gas volume is high, the switching valve is opened; when the exhaust gas volume is low, the switching valve is closed, and the exhaust gas is discharged directly through the switching valve outlet.

[0012] Among them, the speed reduction and sedimentation component 6 includes a conical material guide pipe 18 and a rotating blade 19. The conical material guide pipe 18 is connected to the air outlet end of the variable frequency fan 2. A dust outlet gap 20 is provided between the conical material guide pipe 18 and the conical cylinder 3. A plurality of rotating blades 19 are installed in the conical material guide pipe 18 through a rotating shaft. A plurality of through holes are provided on the wall of the conical material guide pipe 18. An annular support frame 22 is also installed on the inner wall of the conical material guide pipe 18. A conical dust shield 21 is installed on the annular support frame 22. The conical dust shield 21 is provided at the front end of the rotating blade. The deceleration and sedimentation component adopts a tapered guide pipe with holes. The tapered guide pipe constitutes a deceleration and sedimentation plate. The kinetic energy of the exhaust gas is used to drive the rotating blades to rotate. The axis of the rotating blades is arranged perpendicular to the flow direction of the exhaust gas. In this way, the rotation of the rotating blades will generate centrifugal force on the exhaust gas, reducing the flow rate of the exhaust gas, and then allowing large particles of dust to pass through the tapered guide pipe to settle to the dust outlet gap and deposited at the position of the dust outlet pipe.

[0013] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. Automatic dust collector, including cylindrical shell and variable frequency fan, characterized in that The top of described outer shell and outer shell is provided with a filter, and the bottom of described outer shell and inner shell are provided with a filter. The deceleration and sedimentation assembly includes a conical material guide pipe and a rotating blade, the conical material guide pipe is connected to the air outlet end of the variable frequency fan, a dust discharge gap is provided between the conical material guide pipe and the conical cylinder, a plurality of rotating blades are installed in the conical material guide pipe through a rotating shaft, a plurality of through holes are provided on the wall of the conical material guide pipe, an annular support frame is further installed on the inner wall of the conical material guide pipe, a conical dust shield is installed on the annular support frame, and the conical dust shield is provided at the front end of the rotating blade; The apertures of the second filter screen, the first filter screen and the third filter screen decrease in sequence.

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