Efficient cyclone dust collection device

Abstract

The utility model relates to the technical field of carbon product production, and provides an efficient cyclone dust collection device which comprises a cyclone cylinder, a cyclone air inlet and a cyclone upper air outlet pipe, a cyclone cone is arranged at the bottom of the cyclone cylinder, a cyclone lower discharge port valve is arranged at the bottom end of the cyclone cone, and an inspection port is formed in the right side wall of the cyclone cylinder. According to the cyclone dust collector, due to the fact that the air passing efficiency is improved through the upper air outlet and the lower air outlet, on the premise that the same dust collection effect is guaranteed, the size of the cyclone dust collector can be designed to be smaller, the occupied area of the cyclone dust collector is saved, and the space cost is reduced. Through the arrangement of the cyclone lower air outlet pipe, the motion trail of dust in the barrel is changed, so that the dust at the middle lower part of the barrel is difficult to gather in the center, and more dust can only settle downwards, so that the dust separation efficiency is remarkably improved, and dust emission is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the carbon product production technical field, especially a kind of high-efficiency cyclone dust collector. BACKGROUND

[0002] Special carbon graphite material is first ground to micron fine powder by grinding machine during production, and then the ingredients are completed according to specific formula. The fine powder after mixing and preheating is kneaded with molten liquid pitch to form paste. The paste after kneading is cooled to form paste block with a size less than 10 cm, and then the paste block is ground again to fine powder with a size of tens of microns, and then molded by molding or isostatic pressing to obtain green body. The green body is baked to become special carbon material, and further impregnated, twice baked and graphitized to finally form special graphite material.

[0003] In the production process of special carbon graphite material, the kneading step is crucial. However, a large amount of dust-containing flue gas is generated during the kneading process. The flue gas is composed of volatile substances produced by the high-temperature decomposition of pitch, and tar is formed after cooling. The dust in it is mainly coke fine powder.

[0004] The traditional cyclone dust collector, as shown in the drawings, usually uses an electric tar precipitator to treat the kneading flue gas, and a cyclone dust collector is added at the front end of the electric tar precipitator as pretreatment. Figure 1

[0005] However, the existing cyclone dust collector has many drawbacks. On the one hand, as the temperature decreases, the dust-containing flue gas will change into dust-containing tar, which has strong adsorption, high viscosity and high flowability, and is easy to cause flue gas treatment pipeline blockage. On the other hand, in order to ensure smooth ventilation of the system, a larger size cyclone equipment is often selected when a cyclone dust collector is used for pretreatment. However, the separation effect of dust will decrease significantly after the size of the cyclone increases. SUMMARY

[0006] The utility model aims to provide a kind of high-efficiency cyclone dust collector, and the device is used to work, so as to solve the above problems.

[0007] ​To solve the above technical problems, the utility model provides technical scheme as follows: A kind of high -efficient cyclone dust collecting device, including cyclone cylinder, cyclone air inlet and cyclone upper air outlet pipe, the bottom of cyclone cylinder is provided with cyclone cone, the bottom end of cyclone cone is provided with cyclone lower discharge port valve, the right side wall of cyclone cylinder is provided with inspection port, the top end of cyclone cylinder right side wall is provided with cyclone air inlet, the front end of cyclone cylinder top is connected with cyclone upper air outlet pipe, the lower portion of cyclone upper air outlet pipe is provided with barrel-shaped filter screen, the lower portion of barrel-shaped filter screen is provided with cyclone lower air outlet pipe, cyclone upper air outlet pipe and barrel-shaped filter screen are connected with barrel-shaped filter screen and cyclone lower air outlet pipe, the lower end of cyclone lower air outlet pipe is connected with cyclone lower air outlet valve.

[0008] Compared with prior art, the utility model has the beneficial effects as follows:

[0009] 1. A kind of high -efficient cyclone dust collecting device provided by the utility model, traditional cyclone only has one upper air outlet, the device additionally lower air outlet, make flue gas passage double, greatly improve the efficiency of air passing, can more efficiently handle the dust-containing flue gas generated by mixing machine.

[0010] 2. A kind of high -efficient cyclone dust collecting device provided by the utility model, because upper and lower air outlet improves the efficiency of air passing, under the premise of guaranteeing same dust removal effect, the size of cyclone dust collector can be designed smaller, saves equipment floor area, reduces space cost.

[0011] 3. A kind of high -efficient cyclone dust collecting device provided by the utility model, by the setting of cyclone lower air outlet pipe, change the movement track of dust in cylinder, so that the dust in lower part of cylinder is difficult to gather to center, more dust can only sink downward, thereby significantly improve the separation efficiency of dust, effectively reduce dust emission.

[0012] 4. A kind of high -efficient cyclone dust collecting device provided by the utility model, upper and lower air outlet in cyclone cylinder are provided with detachable pleated tube, the pleated tube is made by folding and pressing metal sheet with thickness less than 1mm, one end is connected with air outlet, and the other end is zigzag. Because its thickness is low, it is easy to vibrate under the action of wind, can prevent tar flue gas and other easy to adhere materials from accumulating at cyclone air outlet, guarantee stable operation of device.

[0013] 5. A kind of high -efficient cyclone dust collecting device provided by the utility model, barrel-shaped filter screen is installed between upper and lower air outlet in cyclone cone, can filter dust and adsorb tar. Open inspection port regularly to clean or replace filter screen, can further block dust and tar, avoid dust-containing tar from blocking pipeline, reduce the work burden of downstream dust collector or electric tar catcher and other flue gas treatment devices, prolong the service life of downstream equipment.

[0014] 6. This utility model provides a high-efficiency cyclone dust collection device that is flexibly adaptable to various working conditions: the lower air outlet of the cyclone is equipped with a valve, which can adjust the flow rate of the lower air outlet. When the valve is closed, all flue gas passes through the upper air outlet pipe of the cyclone; by adjusting the valve opening, the air volume of the upper and lower air outlets can be freely distributed to meet the air volume requirements under different working conditions, achieve a higher filtration effect, and improve the applicability of the device.

[0015] 7. This utility model provides a high-efficiency cyclone dust collection device with strong functional expandability: the pleated tube is detachable and can be replaced with a non-powered wind cap. The non-powered wind cap rotates under negative pressure, generating secondary centrifugal force on the passing flue gas dust, further improving the separation effect of flue gas dust, and providing more possibilities for upgrading the device's functions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an existing cyclone dust collection device.

[0017] Figure 2 This is a schematic diagram of the cyclone dust collection device of this utility model.

[0018] The following are the labels in the attached diagram: 1. Cyclone cylinder; 2. Cyclone air inlet; 3. Cyclone upper air outlet pipe; 4. Pleated pipe; 5. Cyclone lower air outlet pipe; 6. Cyclone cone; 7. Cyclone lower air outlet valve; 8. Cyclone lower discharge port valve; 9. Inspection port; 10. Barrel-shaped filter screen. 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] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0021] Combination Figure 2As shown, this utility model discloses a high-efficiency cyclone dust collection device, including a cyclone cylinder 1, a cyclone inlet 2, and a cyclone upper outlet pipe 3. A cyclone cone 6 is provided at the bottom of the cyclone cylinder 1, and a cyclone lower outlet valve 8 is provided at the bottom end of the cyclone cone 6. An inspection port 9 is provided on the right side wall of the cyclone cylinder 1, and a cyclone inlet 2 is provided at the top end of the right side wall of the cyclone cylinder 1. The cyclone upper outlet pipe 3 is connected to the front end of the top of the cyclone cylinder 1. A barrel-shaped filter screen 10 is provided below the cyclone upper outlet pipe 3, and a cyclone lower outlet pipe 5 is provided below the barrel-shaped filter screen 10. A pleated pipe 4 connects the cyclone upper outlet pipe 3 and the barrel-shaped filter screen 10 and the cyclone lower outlet pipe 5. A cyclone lower outlet valve 7 is connected to the lower end of the cyclone lower outlet pipe 5.

[0022] Specifically, the cyclone inlet 2 is connected to the exhaust port of the kneader, and the upper cyclone outlet pipe 3 and the lower cyclone outlet valve 7 are connected to a dust collector or an electrostatic precipitator or other flue gas treatment device.

[0023] The flue gas from the mixing machine mainly consists of tar generated from the high-temperature decomposition of asphalt, and also contains a certain amount of dust.

[0024] Under the negative pressure suction generated by the flue gas treatment device, the mixed dust-laden flue gas cuts into the cyclone cylinder 1 from the cyclone inlet 2. Under the action of centrifugal force, it rotates and descends along the cyclone cylinder 1. The dust has a large centrifugal force and continues to rotate and sink along the side wall of the cylinder. The flue gas is light and its centrifugal force is much smaller than that of the dust. Under the action of suction, it passes through the barrel-shaped filter screen 10 and is drawn away from the cyclone lower outlet pipe 5 and the cyclone lower outlet valve 7. After the dust descends to the position of the cyclone cone 6, its speed decreases sharply and it slowly settles at the bottom of the cyclone cone 6. It can then be discharged through the cyclone lower outlet valve 8.

[0025] More specifically,

[0026] Traditional cyclones only have one upper air outlet, but this cyclone dust collection device adds a lower air outlet, doubling the flue gas passage and resulting in higher airflow efficiency.

[0027] The presence of upper and lower air outlets improves airflow efficiency, allowing the cyclone dust collector to be made smaller while maintaining the same dust removal effect.

[0028] Due to the presence of the cyclone lower outlet duct 5, dust in the lower part of the cylinder cannot accumulate towards the center, and more dust can only settle downwards, thereby improving the dust separation efficiency.

[0029] The upper and lower air outlets inside the cyclone body 1 are equipped with detachable pleated tubes 4. The pleated tubes 4 are made of metal plates with a thickness of less than 1 mm. One end of the pleated tube 4 is connected to the air outlet, and the other end is serrated. Because the pleated tube 4 is thin, it is easy to vibrate under the action of wind, so that substances that are easy to adhere, such as tar smoke, are not easy to accumulate at the air outlet of the cyclone.

[0030] A barrel-shaped filter 10 can be installed between the upper and lower air outlet pipes inside the cyclone cone 6 to filter dust and adsorb tar. The filter can be cleaned or replaced periodically by opening the inspection port 9. The barrel-shaped filter 10 can further block dust and tar, preventing dust and tar from clogging the pipes, and at the same time reducing the burden on downstream dust collectors or electrostatic precipitators and other flue gas treatment devices.

[0031] The barrel-shaped filter screen 10 can be replaced with filter screens of different mesh sizes as needed.

[0032] The pleated tube 4 is detachable and can be replaced with a non-powered wind cap. The non-powered wind cap rotates under negative pressure, thereby generating secondary centrifugal force on the passing flue gas dust, which can further improve the separation effect of flue gas dust.

[0033] The cyclone's lower air outlet is equipped with a valve to regulate the airflow at the lower outlet. When the valve is closed, all flue gas passes through point 3 of the cyclone's upper air outlet pipe. Adjusting the opening of the lower air outlet valve allows for free distribution of the airflow between the upper and lower outlets to meet the airflow requirements under different working conditions and achieve a higher filtration effect.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cyclone dust collection device, comprising a cyclone cylinder (1), a cyclone inlet (2), and a cyclone outlet pipe (3), characterized in that: A cyclone cone (6) is provided at the bottom of the cyclone cylinder (1), a cyclone lower discharge port valve (8) is provided at the bottom end of the cyclone cone (6), an inspection port (9) is provided on the right side wall of the cyclone cylinder (1), a cyclone air inlet (2) is provided at the top end of the right side wall of the cyclone cylinder (1), a cyclone upper air outlet pipe (3) is connected to the front end of the top of the cyclone cylinder (1), a barrel-shaped filter screen (10) is provided below the cyclone upper air outlet pipe (3), a cyclone lower air outlet pipe (5) is provided below the barrel-shaped filter screen (10), a pleated pipe (4) is connected between the cyclone upper air outlet pipe (3) and the barrel-shaped filter screen (10) and the barrel-shaped filter screen (10) and the cyclone lower air outlet pipe (5), and a cyclone lower air outlet valve (7) is connected to the lower end of the cyclone lower air outlet pipe (5).

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