Rare earth polishing powder calcining kiln

Abstract

The utility model relates to the technical field of calcining, in particular to a rare earth polishing powder calcining kiln which comprises a kiln body, a calcining cylinder, a high-temperature generating device, a fan, a turnover mechanism, a partition mechanism and a water tank. The furnace body is connected with a cooling box through a plurality of groups of connecting frames; the calcining cylinder penetrates through the furnace body and the cooling box; two groups of connecting nets are symmetrically mounted on the calcining cylinder; the turnover mechanism is arranged in the calcining cylinder; the two partition mechanisms are adjustably arranged on the calcining cylinder and located between the furnace body and the cooling box. Rare earth polishing powder raw materials in the calcining barrel can be conveniently overturned in a reciprocating mode through the overturning mechanism, the calcining and cooling efficiency is improved, the calcining barrel can be divided into the calcining section, the buffering section and the cooling section through the arrangement of the two partition mechanisms, and the partition mechanisms are matched with the overturning mechanism. The calcining section, the buffering section and the cooling section can work respectively and do not interfere with one another, calcining heat loss is avoided, energy consumption is reduced, and the working efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to calcination technical field, concretely to a kind of rare earth polishing powder calcination kiln. BACKGROUND

[0002] Rare earth polishing powder becomes the first choice of glass polishing material due to high polishing efficiency brought by its unique chemical mechanical action principle, and its main process is: raw material, high-temperature calcination, crushing classification, mixing screening, finished product.

[0003] Chinese patent with authorization announcement No.CN221005903U discloses a kind of rare earth polishing powder calcination kiln, the kiln includes base and is set on base feeding assembly, conveying assembly, calcination component and cooling component.The material tray in the scheme, its bottom plate uses support rib design, and increase the groove provided rare earth polishing powder calcination kiln device on support rib can make calcination furnace reach uniform and sufficient heating effect, to reduce the heating time of polishing material, simultaneously, the scheme also changes the cooling mode of material, reduces the cooling time after material heating, improves product efficiency.

[0004] But the above-mentioned disclosed scheme has following insufficient places: the airtightness of calcination bin is poor, the internal closure of rare earth polishing powder raw material cannot be guaranteed during calcination, leading to energy consumption increase, and the efficiency of overall calcination is low. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art, and proposes a kind of rare earth polishing powder calcination kiln.

[0006] The technical scheme of the utility model: a kind of rare earth polishing powder calcination kiln, including furnace body, its cooling box is connected by multiple groups of connecting frame;Calcination cylinder, its one end is provided with electric door body, and calcination cylinder is set through furnace body and cooling box, and two groups of connecting nets are symmetrically installed on calcination cylinder, and two groups of connecting nets are respectively located in the interior setting of furnace body and cooling box;High-temperature generating device, it is set in furnace body inner wall;Fan, it is set in cooling box inner wall;Overturning mechanism, it is set in the interior of calcination cylinder, and overturning mechanism is composed of rotating shaft that is rotationally connected in the interior of calcination cylinder and spiral feeding blade that is installed on the outer wall of rotating shaft and is adapted to the inner wall of calcination cylinder, and rotating shaft is driven to rotate by driving assembly;Partition mechanism, it is provided with two groups, and two groups of partition mechanisms are adjustably set on calcination cylinder and located between furnace body and cooling box, and two groups of partition mechanisms divide calcination cylinder into calcination section, buffer section and cooling section;And water tank, its interior is provided with hot air cavity, and the output end of hot air cavity is installed with exhaust pipe, and the side end of water tank is provided with two groups of suction pipes, and two groups of suction pipes are communicated with hot air cavity, and suction pipe is provided with suction pump, and the other end of suction pipe is communicated with furnace body or cooling box.

[0007] Preferably, the two ends of the calcining cylinder are provided with support frames, the rotating shaft is rotatably connected with the two groups of support frames, and the driving assembly is arranged on one group of support frames located at the discharging end of the calcining cylinder.

[0008] Preferably, the partition mechanism comprises a connecting box which is sleeved on the calcining cylinder, two groups of blocking plates which are symmetrically and slidably connected with the inner wall of the connecting box, one end of each group of blocking plates being provided with a clearance, and the rotating shaft being movably connected with the two clearances, and a telescopic assembly which is installed on the outer wall of the connecting box and has an output end connected with the blocking plates.

[0009] Preferably, the tail gas filtering assembly is arranged on the suction pipe and at the connection position of the furnace body or the cooling box.

[0010] Preferably, a serpentine pipe is arranged on one side of the water inlet at the top end of the water tank, the serpentine pipe is in communication with the water storage cavity of the water tank, the input end of the serpentine pipe is connected with an external water supply mechanism, and the serpentine pipe is wound outside the buffer section of the calcining cylinder.

[0011] Preferably, the bottom end of the furnace body and the cooling box are both provided with an opening, and the bottom end of the furnace body and the cooling box are both slidably connected with a material receiving plate corresponding to the opening.

[0012] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects: the utility model can conveniently reciprocate the rare earth polishing powder raw material in the calcining cylinder through the turnover mechanism, accelerates the calcining and cooling efficiency, and the turnover mechanism can also convey the rare earth polishing powder raw material, the calcining cylinder can be divided into a calcining section, a buffer section and a cooling section through the arrangement of the two groups of partition mechanisms, the loss of calcining heat is avoided, the energy consumption is reduced, the partition mechanism and the turnover mechanism cooperate with each other, the calcining section, the buffer section and the cooling section can work respectively and do not interfere with each other, and the working efficiency is further improved; through the arrangement of the serpentine pipe, the raw material after calcining can be preliminarily cooled, the residual heat of calcining can be recycled, the calcining tail gas heat can be recycled through the arrangement of the suction pipe and the hot gas cavity, and resource waste is further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a calcining cylinder installation mode schematic view of the utility model;

[0015] Figure 3 It is a partition mechanism and calcining cylinder connection mode schematic view of the utility model;

[0016] Figure 4 It is a water tank structure schematic view of the utility model.

[0017] Fig. 1, furnace body; 101, connecting frame; 102, cooling box; 103, receiving plate; 104, high temperature generating device; 105, fan; 2, calcination cylinder; 201, electric door body; 202, connecting net; 203, supporting frame; 204, connecting box; 205, telescopic assembly; 206, blocking plate; 207, rotating shaft; 3, water tank; 301, hot gas cavity; 302, coiled pipe; 303, exhaust pipe; 304, air suction pipe; 305, tail gas filtering assembly. DETAILED DESCRIPTION

[0018] Example 1

[0019] As Figures 1 to 4 shown, the utility model provides a kind of calcination kiln of rare earth polishing powder, including furnace body 1, calcination cylinder 2, high temperature generating device 104, fan 105, turnover mechanism, partition mechanism and water tank 3;Furnace body 1 is connected with cooling box 102 by multiple groups of connecting frame 101;Calcination cylinder 2 one end is provided with electric door body 201, electric door body 201 hydraulic cylinder and door plate constitute, hydraulic cylinder is hinged connection with calcination cylinder 2 and door plate, the one end of door plate is hinged connection with calcination cylinder 2, calcination cylinder 2 is set through furnace body 1 with cooling box 102, two groups of connecting nets 202 are symmetrically installed on calcination cylinder 2, two groups of connecting nets 202 are respectively located inside furnace body 1 and cooling box 102 setting;High temperature generating device 104 is arranged in furnace body 1 inner wall;Fan 105 is arranged in cooling box 102 inner wall;Turnover mechanism is set in the inside of calcination cylinder 2, and turnover mechanism is constituted by rotating shaft 207 that is rotationally connected in the inside of calcination cylinder 2 and the helical feeding blade that is installed on the outer wall of rotating shaft 207 and is adapted to the inner wall of calcination cylinder 2, and rotating shaft 207 is driven rotation by drive assembly;Partition mechanism is provided with two groups, and two groups of partition mechanism are adjustably set on calcination cylinder 2 and are located between furnace body 1 and cooling box 102, and two groups of partition mechanism divide calcination cylinder 2 into calcination section, buffer section and cooling section;Water tank 3 is provided with hot gas cavity 301 inside, and the output end of hot gas cavity 301 is provided with exhaust pipe 303, and the side end of water tank 3 is provided with two groups of air suction pipes 304, and two groups of air suction pipes 304 are communicated with hot gas cavity 301, and air suction pipe 304 is provided with suction pump and solenoid valve, and the other end of air suction pipe 304 is communicated with furnace body 1 or cooling box 102.

[0020] Further, the both ends of calcination cylinder 2 are provided with supporting frame 203, and rotating shaft 207 is rotationally connected with two groups of supporting frame 203 by bearing, and drive assembly is arranged on one group of supporting frame 203 located at the discharging end of calcination cylinder 2, and drive assembly is constituted by motor driving chain transmission assembly, and rotating shaft 207 is driven to rotate by starting drive assembly through controller, and then helical feeding blade is driven to rotate, and rare earth polishing powder raw material in the inside of calcination cylinder 2 can be turned over.

[0021] Further, the partition mechanism comprises the connecting box 204, the blocking plates 206 and the telescopic assembly 205; the connecting box 204 is sleeved on the calcination cylinder 2; the blocking plates 206 are provided in two groups, the two groups of blocking plates 206 are symmetrically and slidingly connected to the inner wall of the connecting box 204, one end of the two groups of blocking plates 206, which abut against each other, is provided with a clearance, and the rotating shaft 207 is movably connected to the two clearances; the telescopic assembly 205 is installed on the outer wall of the connecting box 204, the telescopic assembly 205 is provided as a hydraulic rod, and the output end of the telescopic assembly 205 is connected to the blocking plates 206.

[0022] The telescopic assembly 205 is started by the controller to drive the corresponding two groups of blocking plates 206 to slide along the connecting box 204 to approach or move away from each other, and when the opposite ends of the two groups of blocking plates 206 abut against each other, the calcination section and the cooling section on the calcination cylinder 2 can be separated from each other and do not interfere with each other in work.

[0023] Further, the tail gas filtering assembly 305 is arranged on the suction pipe 304 and at the connection position of the furnace body 1 or the cooling box 102, the tail gas filtering assembly 305 is composed of a mounting box, a filter screen installed in the mounting box and an activated carbon adsorption layer, can fully filter the tail gas, avoid the pollution or blockage of the suction pipe 304, the air pump and the hot air cavity 301 caused by dust, and reduce the cleaning work.

[0024] Further, the bottom end of the furnace body 1 and the cooling box 102 is provided with an opening, and the bottom end of the furnace body 1 and the cooling box 102 is slidingly connected to the material receiving plate 103 corresponding to the opening. When the overturning mechanism overturns or conveys the raw materials in the furnace body 1, the powder in the raw materials will fall through the connecting net 202 and fall onto the material receiving plate 103 at the bottom end of the furnace body 1 or the cooling box 102, and when the calcination is completed, the material receiving plate 103 is slid out, and the raw materials can be collected and cleaned.

[0025] In this embodiment, the controller starts the electric door body 201 to open, and the rare earth polishing powder raw material is put into the calcination cylinder 2 and the electric door body 201 is closed. In the initial state, the two sets of blocking plates 206 in the two sets of partition mechanisms on the calcination cylinder 2 are in the closed state. When the raw material is located in the calcination section of the calcination cylinder 2, the high-temperature generating device 104 is started to heat and calcine the raw material in the furnace body 1, and the driving assembly is started to drive the rotating shaft 207 to rotate alternately clockwise and counterclockwise to drive the spiral feeding blade to rotate alternately clockwise and counterclockwise. The spiral feeding blade rotates alternately clockwise and counterclockwise to repeatedly turn the raw material in the calcination section, further improving the calcination efficiency. The hot gas generated in the calcination section can be absorbed and filtered by the corresponding air suction pump, the air suction pipe 304 and the tail gas filtering assembly 305, and then transported to the hot gas cavity 301. The recovered hot gas heats the water in the water storage cavity of the water tank 3, which is convenient for the subsequent workers to use hot water and avoids resource waste. The tail gas after heat exchange is discharged through the exhaust pipe 303; after calcination, the controller starts the two sets of partition mechanisms to open the passage, and the controller starts the rotating shaft 207 to rotate in one direction. The spiral feeding blade transports the calcined raw material to the buffer section, and then enters the cooling section. At this time, the controller restores the two sets of partition mechanisms to the initial state, and the controller controls the rotating shaft 207 to restore the clockwise and counterclockwise alternating rotation state. The fan 105 is started to blow the heat in the turned raw material to the output end of the calcination cylinder 2, thereby completing the cooling. When the cooling section is still working, the raw material can be retransported to the calcination section for calcination. After the raw material in the cooling section is cooled and discharged, the raw material in the calcination section can be transported to the buffer section at the same time, the working continuity is high, and the heat of calcination can be fully utilized to avoid waste.

[0026] Embodiment two

[0027] As Figure 1 , Figure 2 and Figure 4 shown, the rare earth polishing powder calcination kiln provided by the utility model, compared with embodiment one, the water inlet side of the top end of the water tank 3 is provided with a serpentine pipe 302, the serpentine pipe 302 communicates with the water storage cavity of the water tank 3, the input end of the serpentine pipe 302 is connected with an external water supply mechanism, and the serpentine pipe 302 is wound outside the buffer section of the calcination cylinder 2.

[0028] In this embodiment, when the calcined raw material is in the buffer section, the external water supply mechanism continuously supplies cooling water to the serpentine pipe 302. The cooling water absorbs the heat of the calcined raw material in the buffer section through the serpentine pipe 302, so that the cooling water is heated. The heated water is stored in the water tank 3, which supplies hot water to people. Not only can the waste heat of calcination be recycled and utilized, but also the calcined raw material can be preliminarily cooled.

[0029] The embodiment of the utility model is described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A rare earth polishing powder calcining kiln, characterized by, The utility model relates to a calcining device with cooling function The furnace body (1) is connected with the cooling box (102) through a plurality of groups of connecting frames (101); The calcining cylinder (2) is provided with an electric door body (201) at one end, the calcining cylinder (2) is arranged through the furnace body (1) and the cooling box (102), and two groups of connecting nets (202) are symmetrically arranged on the calcining cylinder (2); the two groups of connecting nets (202) are arranged inside the furnace body (1) and the cooling box (102) respectively; The high-temperature generating device (104) is arranged on the inner wall of the furnace body (1); The fan (105) is arranged on the inner wall of the cooling box (102); The overturning mechanism is arranged inside the calcining cylinder (2) and is composed of a rotating shaft (207) rotatably connected inside the calcining cylinder (2) and a spiral feeding blade mounted on the outer wall of the rotating shaft (207) and matched with the inner wall of the calcining cylinder (2); the rotating shaft (207) is driven to rotate by the driving assembly; The partition mechanism is provided with two groups, and the two groups of partition mechanisms are adjustably arranged on the calcining cylinder (2) and located between the furnace body (1) and the cooling box (102); the two groups of partition mechanisms divide the calcining cylinder (2) into a calcining section, a buffer section and a cooling section; The water tank (3) is provided with a hot gas cavity (301) inside, an exhaust pipe (303) is mounted at the output end of the hot gas cavity (301), two groups of air suction pipes (304) are arranged at the side end of the water tank (3), the two groups of air suction pipes (304) are in communication with the hot gas cavity (301), an air suction pump is arranged on the air suction pipe (304), and the other end of the air suction pipe (304) is in communication with the furnace body (1) or the cooling box (102).

2. The rare earth polishing powder calcination kiln according to claim 1, characterized in that, Both ends of the calcining cylinder (2) are provided with support frames (203), the rotating shaft (207) is rotatably connected with the two groups of support frames (203), and the driving assembly is arranged on one group of support frames (203) located at the discharging end of the calcining cylinder (2).

3. The rare earth polishing powder calcining kiln according to claim 1, characterized in that, The partition mechanism comprises The connecting box (204) is sleeved on the calcining cylinder (2); The sealing plates (206) are provided with two groups, the two groups of sealing plates (206) are symmetrically and slidably connected with the inner wall of the connecting box (204), one end of the two groups of sealing plates (206) abutting against each other is provided with a clearance, the rotating shaft (207) is movably connected with the two clearances; The telescopic assembly (205) is mounted on the outer wall of the connecting box (204), and the output end of the telescopic assembly (205) is connected with the sealing plate (206).

4. The rare earth polishing powder calcining kiln according to claim 1, characterized in that, The tail gas filtering assembly (305) is arranged on the air suction pipe (304) and connected with the furnace body (1) or the cooling box (102).

5. The rare earth polishing powder calcination kiln according to claim 1, characterized in that, The water inlet side of the top end of the water tank (3) is provided with a serpentine pipe (302), the serpentine pipe (302) is in communication with a water storage cavity of the water tank (3), the input end of the serpentine pipe (302) is connected with an external water supply mechanism, and the serpentine pipe (302) is wound outside the buffer section of the calcining cylinder (2).

6. A rare earth polishing powder calcination kiln according to claim 1, wherein The bottom ends of the furnace body (1) and the cooling box (102) are provided with openings, and the bottom ends of the furnace body (1) and the cooling box (102) are slidably connected with material receiving plates (103) corresponding to the openings.

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