CN219822551U - Auxiliary material adds and blows device - Google Patents

Abstract

The utility model discloses an auxiliary material adding and blowing device, which belongs to the technical field of pulverized coal conveying, and comprises a storage bin, a conical feed hopper and a three-way pipe fitting, wherein a first discharging valve is arranged at the bottom end of the storage bin, a feed inlet is arranged at the top end of the conical feed hopper, and the bottom end of the conical feed hopper is connected to the three-way pipe fitting; the feeding chute consists of a chute body, a filter screen and a baffle plate; the chute body is hollow and open and is obliquely arranged, two ends of the chute body are fixedly connected with material baffle plates respectively, and a filter screen is fixedly connected between the two material baffle plates; the inclined bottom end of the chute body is provided with a screened material outlet which is connected to the feed inlet; the outlet of the first discharging valve is positioned right above the filter screen. The device can directly clear up the filter screen conveniently after utilizing the filter screen to carry out the filtration of material, need not dismouting change, therefore labour saving and time saving more.

Description

Auxiliary material adds and blows device

Technical Field

The utility model belongs to the technical field of auxiliary material adding and conveying, and particularly relates to an auxiliary material adding and blowing device.

Background

In the copper smelting process using a converter, an operation of feeding auxiliary materials such as pulverized coal and a coking inhibitor into the converter is involved. Specifically, the auxiliary materials from the bin are finally conveyed into the converter through the air pipe under the action of compressed air after being added into the feeding hopper.

In the conveying and using process of the auxiliary materials, certain requirements are met on the particle size and impurity content in the auxiliary materials in the process, and the conveying and using effects of the pulverized coal can be greatly affected by the overlarge particles or high impurity content in the auxiliary materials. Most of the existing blowing devices directly adopt a mode of arranging a filter screen in a conical hopper to filter auxiliary materials, but the filter structure is inconvenient to clean and replace the filter screen and is easy to block. Especially after the filter screen is blocked, the filter screen needs to be cleaned or replaced by stopping the machine for a long time, and the normal production is seriously influenced.

In order to solve the above problems, in the "a pulverized coal adding and blowing device" of the chinese patent publication No. CN216047817U, the technical solution is that two filter tanks are provided, and a group of filter assemblies are provided in each filter tank, so that when the filter assemblies need to be cleaned and replaced, only the communication switch corresponding to the filter tank to be replaced or cleaned is required to be closed, and the whole pulverized coal blowing device is not required to be stopped, thereby greatly improving the blowing efficiency of pulverized coal. Fig. 1 is a schematic structural view of the pulverized coal blowing device.

However, in this technical solution, although the blowing efficiency for the pulverized coal is improved, since the filter assembly is still disposed in the filter tank, there is a problem that time and effort are wasted when the filter assembly is taken out of the filter tank to be cleaned and is then mounted back to the filter tank after the cleaning is completed.

Disclosure of Invention

In order to overcome the problems in the background art, the utility model provides an auxiliary material adding and blowing device which is convenient for cleaning a filter assembly more quickly.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

the auxiliary material adding and blowing device comprises a storage bin, a conical feed hopper and a three-way pipe fitting, wherein the bottom end of the storage bin is provided with a first discharging valve, the top end of the conical feed hopper is provided with a feed inlet, and the bottom end of the conical feed hopper is connected to the three-way pipe fitting; the feeding chute consists of a chute body, a filter screen and a baffle plate; the chute body is hollow and open and is obliquely arranged, two ends of the chute body are fixedly connected with material baffle plates respectively, and a filter screen is fixedly connected between the two material baffle plates; the inclined bottom end of the chute body is provided with a screened material outlet which is connected to the feed inlet; the outlet of the first discharging valve is positioned right above the filter screen.

Further, the chute body is semi-cylindrical.

Further, the striker plate is crescent.

Further, a space is reserved between the top end of the striker plate and the top end of the chute body.

Further, the outside of the striker plate arranged towards the inclined bottom end of the chute body is fixedly connected with a filter collecting tank in an open shape.

Further, the filter screen is formed by welding a plurality of steel bars parallel to the length direction of the chute body on the striker plate.

The utility model has the beneficial effects that:

compared with the prior art that the filter screen is directly arranged in the tank body, the auxiliary materials are directly conveyed by constructing the feeding chute, and the filter screen is arranged on the surface of the feeding chute, so that after the auxiliary materials are filtered by the filter screen, the filter screen can be directly and conveniently cleaned without being disassembled and replaced, and the time and the labor are saved.

Drawings

FIG. 1 is a schematic diagram of a pulverized coal blowing device in the prior art;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of a feed chute of the present utility model;

fig. 4 is a schematic view of the chute body and the striker plate of the present utility model after installation.

In the figure, 1-bin, 2-cone-shaped hopper, 3-tee pipe fitting, 4-first baiting valve, 5-feed inlet, 6-chute body, 7-filter screen, 8-striker plate, 9-feed chute, 10-screening material discharge port, 11-filtering material collecting tank and 12-support frame.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

As shown in fig. 2-4, an auxiliary material adding and blowing device comprises a storage bin 1, a conical feed hopper 2 and a three-way pipe fitting 3, wherein a first discharging valve 4 is arranged at the bottom end of the storage bin 1, a feed inlet 5 is arranged at the top end of the conical feed hopper 2, and the bottom end of the conical feed hopper 2 is connected to the three-way pipe fitting 3; the bin is used for storing materials to be conveyed; one end of the three-way pipe fitting 3 is connected with a compressed air source, and the other end is connected with a material conveying pipe; preferably, the bottom end of the conical hopper 2 is connected to the three-way pipe 3 by a second discharge valve, which allows for a better control of the discharge of material in the conical hopper 2.

In particular, the device also comprises a feeding chute 9 consisting of a chute body 6, a filter screen 7 and a baffle plate 8; the chute body 6 is hollow, open and inclined, two ends of the chute body are fixedly connected with baffle plates 8 respectively, and a filter screen 7 is fixedly connected between the two baffle plates 8; the inclined bottom end of the chute body 6 is provided with a screened material discharge port 10, and the screened material discharge port 10 is connected to the feed inlet 5; the outlet of the first discharging valve 4 is positioned right above the filter screen 7. Adopt above-mentioned structural design's feeding chute, the unloading conveying of auxiliary material can be realized to the design of slope form on the one hand, and on the other hand auxiliary material is filtered the time directly at the upper surface of chute body 6, filters the back through filter screen 7 like this, can conveniently clear up filter screen 7 directly, and need not to dismantle and change like in the prior art. Thereby saving more time and labor.

Preferably, the chute body 6 is semi-cylindrical in order to facilitate faster discharge of material. The semi-cylindrical chute body is beneficial to downward discharge after gathering auxiliary materials.

Preferably, the striker plate 8 is crescent-shaped. The design is favorable to reducing the occurrence of putty phenomenon when the filter screen filters.

More preferably, a space is provided between the top end of the striker plate 8 and the top end of the chute body 6. By adopting the design, the trapped sundries after being filtered by the filter screen 7 cannot all overflow from the two sides of the filter screen directly.

Preferably, the outside of the striker plate 8 arranged towards the inclined bottom end of the chute body 6 is fixedly connected with a filter collecting tank 11 in an open shape. Therefore, sundries trapped by the filter screen 7 can be collected by utilizing the filter material collecting tank 11, and the pollution to the field operation environment caused by the sprinkling of the sundries is avoided. After the filtrate collecting tank 11 is filled with filtrate, the operator can clean the filtrate.

Preferably, the filter screen 7 is formed by welding a plurality of steel bars parallel to the length direction of the chute body 6 on the striker plate 8. By adopting the design, the filter screen formed by welding the reinforcing steel bars has high structural strength and is durable. Further, by controlling the spacing between adjacent rebar, the size of debris desired to be screened and retained can be obtained.

Specifically, the bottom end of the chute body 6 is provided with a supporting frame 12, and the bottom end of the supporting frame 12 is fixed on the top end surface of the conical hopper 2. The support of the feed chute 9 is achieved by means of a support frame 12.

The working process of the utility model comprises the following steps: when the utility model is used for blowing auxiliary materials (coal dust or coking inhibitor) into the copper smelting converter, the auxiliary materials from the bin enter a feeding chute, are filtered by a filter screen in the feeding chute, enter a conical hopper through a screening material discharge port, and are finally blown by a three-way pipe fitting; when the filter screen needs to be cleaned, the surface of the feeding chute 9 is cleaned directly.

Finally, it is noted that the above-mentioned preferred embodiments are merely for illustrating the technical solution of the utility model, and not for limiting the utility model, which has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (6)

1. The auxiliary material adding and blowing device comprises a storage bin (1), a conical feed hopper (2) and a three-way pipe fitting (3), wherein a first discharging valve (4) is arranged at the bottom end of the storage bin (1), a feed inlet (5) is arranged at the top end of the conical feed hopper (2), and the bottom end of the conical feed hopper (2) is connected to the three-way pipe fitting (3); the method is characterized in that: the feeding chute (9) is composed of a chute body (6), a filter screen (7) and a baffle plate (8); the chute body (6) is hollow, open and inclined, two ends of the chute body are fixedly connected with material baffle plates (8) respectively, and a filter screen (7) is fixedly connected between the two material baffle plates (8); the inclined bottom end of the chute body (6) is provided with a screening material discharge hole (10), and the screening material discharge hole (10) is connected to the feed inlet (5); the outlet of the first discharging valve (4) is positioned right above the filter screen (7).

2. An auxiliary material adding and blowing device according to claim 1, wherein: the chute body (6) is semi-cylindrical.

3. An auxiliary material adding and blowing device according to claim 2, wherein: the striker plate (8) is crescent.

4. A supplementary material adding and blowing device according to claim 3, wherein: the top end of the striker plate (8) is spaced from the top end of the chute body (6).

5. An auxiliary material adding and blowing device according to claim 4, wherein: the outside of the striker plate (8) arranged towards the inclined bottom end of the chute body (6) is fixedly connected with a filter collecting groove (11) which is in an open shape.

6. An auxiliary material adding and blowing device according to any one of claims 1 to 5, wherein: the filter screen (7) is formed by welding a plurality of steel bars parallel to the length direction of the chute body (6) on the striker plate (8).