Device for reducing feeding raw material powder rate of calcium carbide furnace

Abstract

The utility model relates to the technical field of calcium carbide furnace raw material processing devices, in particular to a device for reducing powder rate of raw materials entering a calcium carbide furnace, which comprises a vibrating feeder, a screen, a blanking pipe and a conveying pipeline, the screen is mounted in a bottom plate of the vibrating feeder, an opening is arranged on the bottom plate of the vibrating feeder, and the blanking pipe is mounted on the lower side of the opening. The tail end of the conveying pipeline is connected with a raw material bin, and a conveying pump is arranged at the head end of the conveying pipeline. The vibrating feeder is reasonable and compact in structure and convenient to use, lime powder is screened out by additionally arranging the screen on an original vibrating feeder, the problem that the frequency of material collapse of the calcium carbide furnace is high due to the fact that more lime powder exists in raw materials of the calcium carbide furnace is solved, the furnace condition is stabilized, the yield is improved, and the screened lime powder is conveyed to a raw material bin to be used for pelletizing.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide furnace raw material processing devices, in particular to a device for reducing the powder rate of raw materials fed into a calcium carbide furnace. Background Art

[0002] At present, after the raw materials enter the factory, they need to be transported to the calcium carbide furnace silo for smelting through a feeding belt. In the process of passing through the belt, there are many falling points. When entering the weighing bucket, there is a lot of powder, which affects the reference of the raw materials, resulting in frequent fluctuations in the furnace pressure of the calcium carbide furnace, which is difficult to control. There are many material collapses, and the maximum number of material collapses in the calcium carbide furnace is 720 times per month due to the large amount of lime powder. Before the calcium carbide furnace is turned on, the electrode current is small for a short time. Due to the collapse of the calcium carbide furnace, fire and burnt soft connections leaked. The calcium carbide furnace was forced to downgrade to handle the material surface, affecting production and the safety of on-site inspection personnel. The process alarm exceeded the standard seriously. Summary of the invention

[0003] The utility model provides a device for reducing the powder rate of raw materials entering a calcium carbide furnace, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problems of the existing calcium carbide furnace having a high frequency of material collapse due to the large amount of lime raw material powder, affecting production and posing safety hazards.

[0004] The technical solution of the utility model is achieved through the following measures: a device for reducing the powder rate of raw materials entering a calcium carbide furnace, comprising a vibrating feeder, a screen, a feed pipe and a conveying pipeline, a screen is installed in the bottom plate of the vibrating feeder, an opening is provided on the bottom plate of the vibrating feeder, a feed pipe is installed on the lower side of the opening, the feed pipe is connected to the conveying pipeline, the end of the conveying pipeline is connected to the raw material bin, and a conveying pump is provided at the head end of the conveying pipeline.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] Preferably, it also includes an ash storage bin, and an ash storage bin is provided between the discharge pipe and the delivery pump.

[0007] Preferably, it also includes a small ash bin, which is connected to the middle of the discharge pipe and is communicated with the ash storage bin.

[0008] Preferably, a high material level meter and a low material level meter are respectively provided at upper and lower intervals in the ash storage bin, and the high material level meter and the low material level meter are connected to a control system, and the control system is connected to a conveying pump.

[0009] Preferably, it also includes a booster, a compressed air pipeline is provided outside the delivery pipeline, a plurality of boosters are provided on the compressed air pipeline at intervals, the booster outlet is connected to the delivery pipeline, and the control system is connected to the booster.

[0010] The utility model has a reasonable and compact structure and is easy to use. A screen is added to the original vibrating feeder to screen out lime powder, thereby reducing the problem of high frequency of calcium carbide furnace collapse caused by excessive lime powder in the raw materials of the calcium carbide furnace, stabilizing the furnace condition, and increasing output. The screened lime powder is transported to the raw material bin for ball making. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a schematic diagram of the front half-section structure of an embodiment of the utility model.

[0012] The codes in the attached drawings are: 1 is a vibrating feeder, 2 is a discharge pipe, 3 is an ash storage bin, 4 is a high material level meter, 5 is a low material level meter, 6 is a conveying pipeline, 7 is a small ash bin, 8 is a compressed air pipeline, 9 is a booster, and 10 is a conveying pump. DETAILED DESCRIPTION

[0013] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0014] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0015] The present invention is further described below in conjunction with the embodiments and drawings:

[0016] Embodiment 1: As attached Figure 1 As shown, the device for reducing the powder rate of raw materials entering the calcium carbide furnace includes a vibrating feeder 1, a screen, a feed pipe 2 and a conveying pipeline 6. The screen is installed in the bottom plate of the vibrating feeder 1, and an opening is provided on the bottom plate of the vibrating feeder 1. The feed pipe 2 is installed on the lower side of the opening. The feed pipe 2 is connected to the conveying pipeline 6. The end of the conveying pipeline 6 is connected to the raw material bin, and the head end of the conveying pipeline 6 is provided with a conveying pump 10.

[0017] When in use, the vibrating feeder 1 transports raw materials, and the lime powder is screened through the screen. The lime powder enters the delivery pump 10 along the feed pipe 2, and enters the raw material bin along the delivery pipeline 6 through the delivery pump 10 for subsequent pelletizing, thereby greatly reducing the lime powder in the calcium carbide furnace, reducing the number of material collapses in the calcium carbide furnace, stabilizing various production data of the calcium carbide furnace, increasing output, and reducing safety hazards. According to demand, the delivery pump 10 is an AV pump.

[0018] According to actual needs, the above device for reducing the powder rate of raw materials entering the calcium carbide furnace can be further optimized and / or improved:

[0019] Embodiment 2: As attached Figure 1As shown, an ash storage bin 3 is also included, and an ash storage bin 3 is provided between the feeding pipe 2 and the delivery pump 10. By providing the ash storage bin 3, a certain amount of powder can be stored and then delivered, thereby reducing transportation costs.

[0020] Embodiment 3: As attached Figure 1 As shown, a small ash bin 7 is also included, and the middle part of the feeding pipe 2 is connected with the small ash bin 7, and the small ash bin 7 is connected with the ash storage bin 3. The small ash bin 7 is set to observe the size of the ash particles. If the powder particles are large, it may indicate that the screen is damaged and needs to be replaced in time; when the ball making machine connected to the raw material bin fails, resulting in the accumulation of powder in the raw material bin, in order to avoid the alarm of too much powder in the ash storage bin 3, the small ash bin 7 is closed and the ash is stopped.

[0021] Embodiment 4: As attached Figure 1 As shown, a high material level meter 4 and a low material level meter 5 are respectively provided at the upper and lower intervals in the ash storage bin 3, and the high material level meter 4 and the low material level meter 5 are connected to the control system, and the control system is connected to the delivery pump 10. By providing the high material level meter 4, when the amount of powder reaches a certain height, the delivery pump 10 is turned on to deliver the powder, and when the material level drops to the detection position of the low material level meter 5, the delivery pump 10 is controlled to be turned off to stop delivering the powder, which can improve the delivery efficiency and reduce the cost.

[0022] Embodiment 5: As attached Figure 1 As shown, a booster 9 is also included, a compressed air pipeline 8 is arranged outside the delivery pipeline 6, a plurality of boosters 9 are arranged at intervals on the compressed air pipeline 8, the outlet of the booster 9 is connected to the delivery pipeline 6, and the control system is connected to the booster 9. By arranging the booster 9 to input compressed air into the delivery pipeline 6, blockage in the pipeline is avoided, and the booster 9 can be linked with the delivery pump 10. When the pump pressure increases, the booster 9 is opened to open the delivery pipeline 6.

[0023] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A device for reducing the powder rate of raw materials entering a calcium carbide furnace, characterized in that It includes a vibrating feeder, a screen, a discharge pipe and a conveying pipeline. A screen is installed in the bottom plate of the vibrating feeder. An opening is arranged on the bottom plate of the vibrating feeder. A discharge pipe is installed on the lower side of the opening. The discharge pipe is connected with the conveying pipeline. The end of the conveying pipeline is connected with the raw material bin. A conveying pump is arranged at the head end of the conveying pipeline.

2. The device for reducing the powder rate of raw materials entering a calcium carbide furnace according to claim 1 is characterized in that It also includes an ash storage bin, which is arranged between the discharge pipe and the conveying pump.

3. The device for reducing the powder rate of raw materials entering a calcium carbide furnace according to claim 2 is characterized in that It also includes a small ash bin, which is connected to the middle of the discharge pipe and is communicated with the ash storage bin.

4. The device for reducing the powder rate of raw materials entering a calcium carbide furnace according to claim 1, 2 or 3, characterized in that A high material level meter and a low material level meter are respectively provided at the upper and lower intervals in the ash storage bin. The high material level meter and the low material level meter are connected to the control system, and the control system is connected to the conveying pump.

5. The device for reducing the powder rate of raw materials entering a calcium carbide furnace according to claim 1, 2 or 3, characterized in that It also includes a booster. A compressed air pipeline is arranged outside the delivery pipeline. A plurality of boosters are arranged on the compressed air pipeline at intervals. The booster outlet is communicated with the delivery pipeline. The control system is connected with the booster.

6. The device for reducing the powder rate of raw materials entering a calcium carbide furnace according to claim 4 is characterized in that It also includes a booster. A compressed air pipeline is arranged outside the delivery pipeline. A plurality of boosters are arranged on the compressed air pipeline at intervals. The booster outlet is communicated with the delivery pipeline. The control system is connected with the booster.

Images