Automatic powder conveying device used between kiln and drying machine

Abstract

The automatic powder conveying device used between the kilns and the drying machines comprises a transfer bin and the multiple kilns, the first drying machine and the second drying machine are arranged on one side of the transfer bin, and powder output equipment is arranged between the first drying machine and the transfer bin and between the second drying machine and the transfer bin. Powder input equipment is arranged between the transfer stock bin and the plurality of kilns, and the powder output equipment comprises a skip car arranged at the output ends of the first dryer and the second dryer; the first vacuum feeding machine is arranged at the top of the transfer stock bin; the first output pipeline is arranged on a skip car at the bottom of the first drying machine, and the first output pipeline is communicated with the transfer stock bin; and the second output pipeline is arranged on a skip car at the bottom of the second drying machine, the second output pipeline is communicated with the first output pipeline, the powder can be input into the transfer stock bin from the drying machines through negative pressure generated by the vacuum feeding machine, then the powder is input into the kiln through the input pipeline, and therefore automatic conveying of the powder is completed.

Description

Technical Field

[0001] The present application relates to the field of powder transportation, and in particular to an automatic powder transportation device for use between a kiln and a dryer. Background Art

[0002] Rare earth polishing powder refers to a powder of mixed light rare earth oxides with cerium oxide as the main component, which is used to improve the surface finish of products or parts. During processing, lanthanum carbonate cerium rare earth needs to be ball-milled, fluorinated, filtered, dried and then input into the kiln for high-temperature calcination. It is necessary to use a split conveying device to input the powder into the kiln after drying.

[0003] However, in the process of implementing the relevant technical solutions, at least the following technical problems were found: after the powder is dried in a dryer, it is necessary to use ton bags to load the material, and then use a crane to lift it to the discharge port of the rotary kiln for unloading. This transportation method is dusty, the manual operation is cumbersome, and manual transportation is required, which has high labor costs. Utility Model Content

[0004] The present application solves the problem of cumbersome manual operation of separate transportation in the prior art by providing an automatic powder conveying device for use between a kiln and a dryer, and achieves the effect of automatically feeding the powder in the dryer into the kiln.

[0005] The present application provides an automatic powder conveying device between a kiln and a dryer, comprising a transfer silo and multiple kilns, a first dryer and a second dryer are arranged on one side of the transfer silo, a powder output device is arranged between the first dryer, the second dryer and the transfer silo, and a powder input device is arranged between the transfer silo and the multiple kilns, the powder output device comprises: a trolley, arranged at the output end of the first dryer and the second dryer; a first vacuum loader, arranged at the top of the transfer silo; a first output pipe, arranged on the trolley at the bottom of the first dryer, and the first output pipe is connected to the transfer silo; a second output pipe, arranged on the trolley at the bottom of the second dryer, and the second output pipe is connected to the first output pipe.

[0006] Furthermore, a Roots blower is provided on one side of the transfer silo, and the Roots blower is connected to the first vacuum loader through a connecting pipe.

[0007] Furthermore, a plurality of vacuum filters are provided on the top of the transfer silo.

[0008] Furthermore, the powder input equipment includes: an input pipeline, which is arranged at the output end of the transfer silo; a kiln discharge port, which is arranged on one side of the multiple kilns, and a vacuum storage silo is provided at the bottom of the kiln discharge port, and the bottom of the vacuum storage silo transports powder to the inside of the kiln through an auger conveyor; a second vacuum loader, which is arranged at the top of the kiln discharge port, and the input pipeline is connected to multiple second vacuum loaders.

[0009] Furthermore, the tops of the transfer silo and the plurality of vacuum storage silos are each provided with a level meter.

[0010] Furthermore, a PLC control cabinet is provided on one side of the transfer silo, and the level meters on the transfer silo and the plurality of vacuum storage silos, the first vacuum loader and the second vacuum loader are electrically connected to the PLC control cabinet.

[0011] The technical solution provided by this application has at least the following technical effects or advantages:

[0012] The negative pressure generated by the first vacuum loader allows the first output pipe and the second output pipe to input the powder in the first dryer and the second dryer into the transfer silo. The negative pressure generated by the second vacuum loader then allows the split in the transfer silo to be input into the kiln through the input pipe, thereby completing the automatic transportation of the powder. There is no need to use a crane to transport the powder, preventing dust pollution and greatly reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the conveying device in the embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the structure of the transfer silo in the embodiment of this application;

[0015] Figure 3 This is a schematic diagram of the planar structure of the kiln discharge port in the embodiment of the present application;

[0016] In the figure: 10, transfer silo; 20, kiln; 30, first dryer; 40, second dryer; 50, powder output device; 60, input device; 70, PLC control cabinet; 80, material level meter; 51, material cart; 52, first output pipeline; 53, second output pipeline; 54, first vacuum loader; 55, Roots blower; 56, vacuum filter; 61, input pipeline; 62, second vacuum loader; 63, kiln discharge port. DETAILED DESCRIPTION

[0017] An embodiment of the present application discloses an automatic powder conveying device for between a kiln and a dryer. The negative pressure generated by the first vacuum loader 54 inputs the powder in the first dryer 30 and the second dryer 40 into the transfer silo 10 through the first output pipe 52 and the second output pipe 53. The negative pressure generated by the second vacuum loader 62 then inputs the powder in the transfer silo 10 into the kiln discharge port 63, thereby automatically inputting the powder in the first dryer 30 and the second dryer 40 into the kiln 20, preventing dust pollution and reducing labor costs.

[0018] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Please refer to Figure 1 and Figure 2 , this embodiment provides an automatic powder conveying device for between a kiln and a dryer, including a transfer silo 10 and a plurality of kilns 20, a first dryer 30 and a second dryer 40 are provided on one side of the transfer silo 10, the storage capacity of the transfer silo 10 is greater than the amount of powder required by the plurality of kilns 20 in one day, and the powder is stably conveyed to the kiln 20, a powder output device 50 is provided between the first dryer 30, the second dryer 40 and the transfer silo 10, a powder input device 60 is provided between the transfer silo 10 and the plurality of kilns 20, the powder output device 50 includes a material cart 51, a first output pipe 52, a second output pipe 53, a first vacuum loader 54, a Roots blower 55, and a vacuum filter 56, the material cart 51 is provided at the output end of the first dryer 30 and the second dryer 40, the first vacuum loader 54 is provided at the top of the transfer silo 10, and the first output pipe 52 is provided on the material cart 51 at the bottom of the first dryer 30 , and the first output pipe 52 is connected to the transfer silo 10, the second output pipe 53 is arranged on the material cart 51 at the bottom of the second dryer 40, and the second output pipe 53 is connected to the first output pipe 52, a Roots blower 55 is arranged on one side of the transfer silo 10, and the Roots blower 55 is connected to the first vacuum loader 54 through a connecting pipe. A plurality of vacuum filters 56 are arranged on the top of the transfer silo 10 to filter the gas entering the transfer silo 10 from the outside. Valves are provided on the section where the first output pipe 52 does not intersect with the second output pipe 53 and on the second output pipe 53. The valves control the first dryer 30 and the second dryer 40 to input powder into the transfer silo 10. The Roots blower 55 generates negative pressure in the first vacuum loader 54, and the powder in the first output pipe 52 and the second output pipe 53 is input into the transfer silo 10 for storage, so that the powder in the transfer silo 10 can be concentratedly input into multiple kilns 20.

[0020] Please refer to Figure 1 、 Figure 2 and Figure 3 The powder input device 60 includes an input pipe 61, a second vacuum loader 62, and a kiln discharge port 63. The input pipe 61 is arranged at the output end of the transfer silo 10, and the kiln discharge port 63 is arranged on one side of the multiple kilns 20, and a vacuum storage silo is arranged at the bottom of the kiln discharge port 63. The bottom of the vacuum storage silo transports powder to the inside of the kiln 20 through an auger conveyor. The second vacuum loader 62 is arranged at the top of the kiln discharge port 63, and the input pipe 61 is connected to the multiple second vacuum loaders 62. The multiple second vacuum loaders 62 are connected to the same fan. The second vacuum loader 62 is provided with a vacuum valve, a ventilation valve and a feed valve. By switching the vacuum valve, the ventilation valve and the feed valve, the transfer silo 10 can supply the multiple kilns 20.

[0021] Please refer to Figure 1 、 Figure 2 and Figure 3 , multiple level meters 80 are respectively arranged on the top of the transfer silo 10 and multiple vacuum storage silos, and a PLC control cabinet 70 is set on one side of the transfer silo 10. The level meters 80 on the transfer silo 10 and multiple vacuum storage silos, the first vacuum loader 54 and the second vacuum loader 62 are electrically connected to the PLC control cabinet 70. The level meter 80 is provided with high and low levels. When the low level has a signal, powder needs to be input. When the high level has a signal, the powder input is stopped. The level meter 80 on the transfer silo 10 detects whether powder needs to be input into the transfer silo 10. The PLC control cabinet 70 controls the first output pipe 52 and the second The opening and closing of the valve on the output pipe 53 and the first vacuum loader 54 are controlled, thereby automatically controlling the first dryer 30 and the second dryer 40 to input powder to the transfer silo 10. The vacuum valve, ventilation valve and feed valve on the second vacuum loader 62 are controlled by the PLC control cabinet 70, and the material level meter 80 detects the material amount of multiple vacuum storage silos. When the material amount in the corresponding vacuum storage silo is insufficient, powder is automatically input to the corresponding vacuum storage silo through the input pipe 61. There is no need to manually use ton-bag loading cranes for transportation, which saves labor costs and prevents pollution caused by dust leakage.

[0022] This application can explain its functional principles through the following operation methods:

[0023] During use, the valves on the first output pipe 52 and the second output pipe 53 are opened according to whether the first dryer 30 and the second dryer 40 are running. The level meter 80 on the transfer silo 10 detects the amount of powder in the transfer silo 10. When the level meter 80 has a low material level signal, the Roots blower 55 on one side of the first vacuum loader 54 is started. The first vacuum loader 54 allows the powder in the first dryer 30 and the second dryer 40 to be input into the material cart 51 at the bottom, and then from the material cart 51 into the transfer silo 10 through the first output pipe 52 and the second output pipe 53. When the level meter 80 on the transfer silo 10 has a high material level signal, the powder input to the transfer silo 10 is stopped. When the level meter 80 on multiple vacuum storage silos has a low material level signal, the vacuum storage is started. The silo corresponds to the feed valve and vacuum valve on the second vacuum loader 62, and the ventilation valve is closed. The second vacuum loader 62 inputs the powder in the transfer silo 10 into the kiln discharge port 63 and the vacuum storage silo through the input pipe 61, and then inputs the powder in the vacuum storage silo into the kiln 20 through the auger conveyor. When the level meter 80 on multiple vacuum storage silos has a high level signal, the ventilation valve corresponding to the second vacuum loader 62 is opened, and the vacuum valve and feed valve are closed, thereby stopping the input of powder to the corresponding kiln 20, and automatically inputting the powder in the first dryer 30 and the second dryer 40 into multiple kilns 20. There is no need to manually use ton bag loading crane to transport it, which saves labor costs and prevents pollution caused by dust leakage.

[0024] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0025] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. An automatic powder conveying device for use between a kiln and a dryer, comprising a transfer silo (10) and a plurality of kilns (20), characterized in that: A first dryer (30) and a second dryer (40) are provided on one side of the transfer silo (10); a powder output device (50) is provided between the first dryer (30), the second dryer (40) and the transfer silo (10); a powder input device (60) is provided between the transfer silo (10) and the plurality of kilns (20); the powder output device (50) comprises: A material cart (51) is provided at the output ends of the first dryer (30) and the second dryer (40); A first vacuum loader (54) is arranged on the top of the transfer silo (10); A first output pipe (52) is provided on the material cart (51) at the bottom of the first dryer (30), and the first output pipe (52) is connected to the transfer silo (10); The second output pipe (53) is arranged on the material cart (51) at the bottom of the second dryer (40), and the second output pipe (53) is connected to the first output pipe (52).

2. The automatic powder conveying device for use between a kiln and a dryer according to claim 1, characterized in that: A Roots blower (55) is provided on one side of the transfer silo (10), and the Roots blower (55) is connected to the first vacuum feeder (54) via a connecting pipe.

3. The automatic powder conveying device for use between a kiln and a dryer according to claim 1, characterized in that: A plurality of vacuum filters (56) are provided on the top of the transfer silo (10).

4. The automatic powder conveying device for use between a kiln and a dryer according to claim 1, characterized in that: The powder input device (60) comprises: An input pipe (61) is provided at the output end of the transfer silo (10); A kiln discharge port (63) is provided on one side of the plurality of kilns (20), and a vacuum storage silo is provided at the bottom of the kiln discharge port (63), and the bottom of the vacuum storage silo conveys powder to the inside of the kiln (20) via an auger conveyor; The second vacuum loader (62) is arranged on the top of the kiln discharge port (63), and the input pipe (61) is connected to multiple second vacuum loaders (62).

5. The automatic powder conveying device between a kiln and a dryer according to claim 4, characterized in that: The tops of the transfer silo (10) and the plurality of vacuum storage silos are each provided with a material level meter (80).

6. The automatic powder conveying device for use between a kiln and a dryer according to claim 5, characterized in that: A PLC control cabinet (70) is provided on one side of the transfer silo (10), and the transfer silo (10), the material level gauges (80) on the plurality of vacuum storage silos, the first vacuum loader (54), and the second vacuum loader (62) are electrically connected to the PLC control cabinet (70).

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