Flue gas treatment device for steel rolling grinding wheel saw

Abstract

The utility model provides a flue gas treatment device for a steel rolling grinding wheel saw, relates to the technical field of metallurgical environment-friendly dust removal auxiliary devices, and aims to solve the problems that a special flue gas treatment device is not designed for flue gas generated in the production and machining process of an existing steel rolling grinding wheel saw, so that the working environment is dirty and mess, and normal production and machining of workers are affected. A cover shell is arranged above the grinding wheel saw, a discharging chute is arranged below the grinding wheel saw, a settling box is arranged on the right side of the discharging chute, the discharging chute is connected with the settling box through a dust removal pipe, a spark catcher is arranged on the right side of the settling box, and the dust removal pipe is connected with the dust removal pipe. An efficient filter cartridge dust remover is mounted on the right side of the spark catcher, the spark catcher is connected with the efficient filter cartridge dust remover through a pipeline, and the housing is connected with the pipeline through a conveying pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical environmental protection dust removal auxiliary device technical field especially relates to a kind of rolling steel abrasive disc saw flue gas treatment device. BACKGROUND

[0002] In the metal bar processing process of rolling mill workshop, abrasive disc saw is a commonly used cutting equipment. A large amount of heated dust and small metal dust particles with sparks are generated during the cutting process of abrasive disc saw. If these dust is not treated in time, it will not only affect the working environment, but also cause harm to the health of equipment and operators. To meet the requirements of improving the working environment in the workshop and the national ultra-low emission environmental protection policy, it is of great significance to research, analyze and improve the dust removal technology of the bar disc abrasive disc saw in the rolling mill workshop.

[0003] During the bar cutting process, the high temperature generated by the high-speed rotation of the disc abrasive disc and the friction with the metal surface causes the heated metal material surface to oxidize and melt, forming yellow dust with a certain temperature that rises rapidly. At the same time, the dust particles with sparks such as worn abrasive disc particles and metal particles fly out along the tangent direction of the abrasive disc operation under the action of the airflow generated by the high-speed rotating abrasive disc airflow, and continuously collide with each other in disorder, resulting in a large amount of small metal dust particles around the discharge chute. The hot yellow dust and metal dust particles with sparks are intertwined and suspended in the air, which can easily spread to the entire working area, increasing the difficulty of dust removal.

[0004] The existing rolling steel abrasive disc saw production and processing process generates flue gas, and no special flue gas treatment device is designed, which leads to dirty and messy working environment and affects normal production and processing of workers. Therefore, it is particularly important to design a rolling steel abrasive disc saw flue gas treatment device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that the existing rolling steel abrasive disc saw production and processing process generates flue gas, and no special flue gas treatment device is designed, which leads to dirty and messy working environment and affects normal production and processing of workers, and proposes a rolling steel abrasive disc saw flue gas treatment device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a rolling steel abrasive disc saw flue gas treatment device, comprising an abrasive disc saw, a cover is arranged above the abrasive disc saw, a discharge chute is arranged below the abrasive disc saw, a settling tank is arranged on the right side of the discharge chute, the discharge chute and the settling tank are connected through a dust removal pipe, a spark trap is arranged on the right side of the settling tank, a high-efficiency filter cartridge dust remover is installed on the right side of the spark trap, the spark trap and the high-efficiency filter cartridge dust remover are connected through a pipeline, and the cover and the pipeline are connected through a conveying pipe.

[0007] Preferably, the right end of the high-efficiency filter cartridge dust collector is connected with an air suction fan, and the right end of the air suction fan is installed with an exhaust cylinder.

[0008] Preferably, a plurality of partitions are arranged in the settling tank, and the lower portion of the plurality of partitions is provided with a movable connecting body unloading drawer.

[0009] Preferably, the high-efficiency filter cartridge dust collector adopts a pleated filter cartridge design.

[0010] Preferably, an auxiliary pipeline is arranged between the air suction fan and the exhaust cylinder.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0012] 1. In the utility model, the design of the flue gas dust removal treatment device adopts multi-level combined capture technology and multi-stage dust removal technology, can efficiently capture and purify the dust and flue gas generated in the grinding wheel saw cutting process, especially the existence of small metal dust particles with sparks, and especially provides a strong guarantee for the safe operation of the entire dust removal system by designing a spark catcher in the dust removal system. Compared with the case that no special flue gas treatment device is designed in the grinding wheel saw machining process of the conventional rolling steel, the technical scheme adopted by the utility model is that the grinding wheel saw is designed with a protective cover, a top dust suction port is designed at the top of the protective cover shell to collect the heated yellow smoke dust overflowing upward when the grinding wheel saw cuts the bar, the spark particles thrown out by the high-speed rotation of the grinding wheel piece and the smoke dust generated by the random and disordered collision of the spark particles in the unloading chute are captured by the unloading chute suction port, and the combination of top and bottom dust suction can cope with the dust diffusion problem under different operation heights, process different dust properties, solve the problem that no special flue gas treatment device is designed in the flue gas generated in the existing rolling steel grinding wheel saw production and machining process, the working environment is dirty and messy, and the normal production and machining of workers is affected.

[0013] 2. In the utility model, the design of the settling tank makes the dust of larger metal particles in the bottom flue gas of the unloading chute fully settle when the airflow passes through the baffle, so that most of the dust is removed before entering the subsequent equipment. The settling tank reduces the load of the secondary high-efficiency filter cartridge dust collector, prolongs the service life of the filter cartridge, reduces the maintenance frequency and operation cost. Since the filter cartridge dust collector adopts a pleated filter cartridge design, the surface area of the filter material is larger than that of the traditional cloth bag. While the dust removal equipment occupies a smaller volume, the filtration area is greatly expanded. This makes the filter cartridge dust collector provide higher filtering effect in a smaller volume, and is especially suitable for flue gas purification of small grinding wheel saw dust removal equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1This is an overall diagram of the utility model steel rolling grinding wheel saw fume treatment device;

[0015] Legend: 1. Abrasive wheel saw; 2. Cover; 201. Conveying pipe; 3. Discharge chute; 4. Settling box; 401. Dust removal pipe; 402. Partition; 403. Discharge drawer; 5. Spark arrester; 6. High-efficiency cartridge dust collector; 601. Pipeline; 7. Induced draft fan; 701. Exhaust pipe; 702. Auxiliary pipe. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] The utility model provides a fume treatment device for a steel rolling grinding wheel saw, comprising a grinding wheel saw 1, a cover shell 2 is provided at the upper position of the grinding wheel saw 1, a discharge chute 3 is provided at the lower position of the grinding wheel saw 1, a sedimentation box 4 is provided on the right side of the discharge chute 3, the discharge chute 3 and the sedimentation box 4 are connected through a dust removal pipe 401, a spark arrester 5 is provided on the right side of the sedimentation box 4, and the addition of the spark arrester 5 provides an important safety guarantee for the entire dust removal system. The bottom fume of the discharge chute 3 is often generated by high-speed friction during the metal cutting process. Sparks are often generated. If they enter the cartridge dust collector directly, they may easily cause risks such as fire. The spark arrester 5 can effectively intercept these sparks to protect downstream equipment, especially the safe operation of the dust collector. A high-efficiency cartridge dust collector 6 is installed on the right side of the spark arrester 5. The spark arrester and the high-efficiency cartridge dust collector 6 are connected by a pipeline 601, and the cover 2 and the pipeline 601 are connected by a delivery pipe 201. The right end of the high-efficiency cartridge dust collector 6 is connected to an induced draft fan 7, and the right end of the induced draft fan 7 is installed with an exhaust pipe 701.

[0019] The rolling steel grinding wheel saw 1 flue gas treatment device in actual use, according to the characteristics and different setting of dust and dust production location Personalized dust collection scheme, heated yellow smoke dust adopts grinding wheel saw 1 protective shell 2 top dust collection, small metal dust particles with sparks adopt unloading chute 3 dust collection, small metal dust particles with sparks are collected by unloading chute 3 dust collection and enter the settling tank 4, the settling tank 4 is a first stage gravity settling tank 4, the first stage gravity settling tank 4 is provided with a partition 402, and the bottom is provided with an unloading drawer 403, the flue gas out of the settling tank 4 enters the spark catcher 5, effectively capturing the sparks in the metal dust particles; The heated yellow smoke dust is collected by the top dust collection of the grinding wheel saw 1 protective shell 2 and enters the pipeline 601 at the outlet of the spark catcher 5, and the small metal dust particles with sparks are mixed and purified by the secondary high-efficiency filter cartridge dust collector 6, and then discharged into the atmosphere by the induced draft fan 7. The design of the flue gas dust removal treatment device adopts multi-level combined capture technology and multi-stage dust removal technology, which can efficiently capture and purify the dust and flue gas generated during the cutting process of the grinding wheel saw 1, especially the existence of small metal dust particles with sparks, especially in the dust removal system designed with the spark catcher 5, which provides strong guarantee for the safe operation of the whole dust removal system. Compared with the conventional rolling steel grinding wheel saw 1 machining process without special flue gas treatment device, the technical scheme adopted by the utility model designs the grinding wheel saw 1 with protective shell 2, and the top dust collection port is designed at the top of the protective shell 2 to collect the heated yellow smoke dust scattered upward during the cutting of the grinding wheel saw 1. The sparks particles thrown out by the high-speed rotation of the grinding wheel and the smoke dust generated by the random and disordered collision of the sparks particles in the unloading chute 3 are collected by the unloading chute 3 suction port. The combination of top and bottom dust collection can cope with the dust diffusion problem under different operating heights, and different dust properties are treated.

[0020] As shown in Figure 1 The settling tank 4 is provided with a plurality of partitions 402, and the lower portion of the plurality of partitions 402 is provided with an unloading drawer 403. The high-efficiency filter cartridge dust collector 6 adopts a pleated filter cartridge design. The induced draft fan 7 is connected with the exhaust cylinder 701 through an auxiliary pipeline 702.

[0021] The effect of the whole embodiment 1 is that, in use, the larger metal dust particles in the flue gas at the bottom of the unloading chute 3 are fully settled when the gas flow passes through the partition 402, so that most of the dust is removed before entering the subsequent equipment. Through the settling tank 4, the load of the secondary high-efficiency filter cartridge dust collector 6 is reduced, the service life of the filter cartridge is prolonged, the maintenance frequency and operating cost are reduced. Since the filter cartridge dust collector adopts a pleated filter cartridge design, the surface area of the filter material is larger than that of the traditional cloth bag. While occupying a smaller volume, the filtering area is greatly expanded. This makes the filter cartridge dust collector provide higher filtering effect in a smaller volume, which is especially suitable for flue gas purification of small dust removal equipment such as grinding wheel saw 1.

[0022] Working principle: according to the characteristics and different production locations of smoke and dust, set up individual dust suction scheme, hot yellow smoke adopts abrasive saw protective shell top dust suction, small metal dust particles with sparks adopt discharge chute dust suction, small metal dust particles with sparks are collected by discharge chute dust suction and enter the settling tank, the settling tank is a primary gravity settling tank, the inside of the primary gravity settling tank is provided with a partition plate, the bottom is provided with a discharge drawer, the smoke gas exits the settling tank and enters the spark trap, effectively capturing and extinguishing the sparks in the metal dust particles; the hot yellow smoke collected by the abrasive saw protective shell top dust suction enters the pipeline at the outlet of the spark trap, mixes with the small metal dust particles with sparks, and then is purified by the secondary high-efficiency filter cartridge dust remover before being discharged into the atmosphere by the induced draft fan.

Claims

1. A fume treatment device for a steel rolling grinding wheel saw, comprising a grinding wheel saw (1), characterized in that: A cover (2) is provided above the grinding wheel saw (1), a discharge chute (3) is provided below the grinding wheel saw (1), a sedimentation box (4) is provided on the right side of the discharge chute (3), the discharge chute (3) and the sedimentation box (4) are connected via a dust removal pipe (401), a spark arrester (5) is provided on the right side of the sedimentation box (4), a high-efficiency filter cartridge dust collector (6) is installed on the right side of the spark arrester (5), the spark arrester and the high-efficiency filter cartridge dust collector (6) are connected via a pipeline (601), and the cover (2) and the pipeline (601) are connected via a delivery pipe (201).

2. The fume treatment device for steel rolling grinding wheel saw according to claim 1, characterized in that: The right end of the high-efficiency cartridge dust collector (6) is connected to an induced draft fan (7), and the right end of the induced draft fan (7) is equipped with an exhaust pipe (701).

3. The fume treatment device for steel rolling grinding wheel saw according to claim 1, characterized in that: A plurality of partition plates (402) are provided in the sedimentation box (4), and a discharge drawer (403) movably connected thereto is provided below the plurality of partition plates (402).

4. The fume treatment device for steel rolling grinding wheel saw according to claim 1, characterized in that: The high-efficiency filter cartridge dust collector (6) adopts a pleated filter cartridge design.

5. The fume treatment device for steel rolling grinding wheel saw according to claim 2, characterized in that: The induced draft fan (7) and the exhaust pipe (701) are connected via an auxiliary pipe (702).

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