A ceramic powder grinding device

Abstract

The present invention belongs to the technical field of ceramic processing, and particularly relates to a ceramic powder grinding device. The present invention includes a box body, in which a first partition and a second partition are installed at intervals in the middle, so as to divide the interior of the box body into a first processing chamber, a second processing chamber and a collection chamber from top to bottom in sequence; a first guide plate, a first fixed plate and a first grinding plate are installed in the first processing chamber; a first connection box is installed at the lower end of the first grinding plate; a filter box is installed at the lower end of the first connection box; a second guide plate, a second fixed plate and a second grinding plate are installed in the second processing chamber; a second connection box is installed at the lower end of the second grinding plate, and a pair of transmission boxes are installed at the lower end of the second connection box. The present invention can avoid cold welding due to high temperature during powder grinding, avoid adhesion due to static electricity, and avoid caking due to moisture in the powder body.

Description

Technical Field

[0001] The present invention belongs to the technical field of ceramic processing, and particularly relates to a ceramic powder grinding device. Background Art

[0002] Ceramic powder has relatively wide applications in the fields of computers, aerospace, and military. To ensure that the particle size of ceramic powder meets the requirements, it is necessary to grind the ceramic powder.

[0003] In the prior art, a ball mill is mostly used to grind ceramic powder. However, the ball mill can only grind the ceramic powder with one type of zirconia ball first, and then the powder needs to be screened out, and then another type of zirconia ball is used for grinding, which is inconvenient to use. At the same time, when the powder is ground, it often causes cold welding due to high temperature; too high water content of the powder will cause the powder to agglomerate; the static electricity of the powder itself will also cause the powder to adhere. Summary of the Invention

[0004] In view of the above deficiencies, the purpose of the present invention is to provide a ceramic powder grinding device.

[0005] The present invention provides the following technical solutions:

[0006] A ceramic powder grinding device includes a box body. Inside the box body, a partition one and a partition two are installed at intervals in the middle, dividing the inside of the box body into a processing chamber one, a processing chamber two, and a collection chamber from top to bottom in sequence. In the upper part of the processing chamber one, a feeding disc one is installed. Below the feeding disc one, a fixed disc one and a grinding disc one are installed in cooperation. A conical grinding cavity one is formed between the fixed disc one and the grinding disc one. The upper opening of the conical grinding cavity one is aligned with the lower opening of the feeding disc one. At the lower end of the grinding disc one, a connection box one is installed in cooperation. At the lower end of the connection box one, a pair of filter boxes are installed in cooperation. The upper and lower ends of the filter box are provided with openings. A filter cavity is provided inside the filter box. Filter meshes are provided in the upper and lower parts of the filter cavity. An electric heating wire is provided in the middle of the filter cavity. An electromagnetic vibrator one is installed on the outer wall of the filter box. The lower opening of the filter box is inserted into a through hole one provided on the partition one.

[0007] In the upper part of the processing chamber two, a feeding disc two is installed. The feeding disc two is conical. The upper opening of the feeding disc two is aligned with the through hole one. Below the feeding disc two, a fixed disc two and a grinding disc two are installed in cooperation. A conical grinding cavity two is formed between the fixed disc two and the grinding disc two. The upper opening of the conical grinding cavity two is aligned with the lower opening of the feeding disc two. At one end of the fixed disc two away from the grinding disc two, a cover plate is installed. An installation cavity is formed between the cover plate and the fixed disc two. An electromagnetic vibrator two and a conductive block are installed on the fixed disc two located in the installation cavity. One end of the conductive block is in contact with the conical grinding cavity two. At the lower end of the grinding disc two, a connection box two is installed in cooperation. At the lower end of the connection box two, a pair of transmission boxes are installed in cooperation. One end of the transmission box passes through a through hole two provided on the partition two and extends into the collection chamber inside, and a collection box is provided in the collection chamber.

[0008] A hopper is installed at the upper end of the box body.

[0009] A rotating shaft one is fixedly connected to the middle of the lower end of the grinding disc one. One end of the rotating shaft one far from the grinding disc one is installed on the bearing seat one. A driven pulley one is installed on the rotating shaft one. A motor one is installed outside the box body. The motor one is connected with a motor shaft one. The motor shaft one is connected with a gear set one. A transmission belt one is installed on the driving pulley one and the driven pulley one of the gear set one in a matching manner.

[0010] A rotating shaft two is fixedly connected to the middle of the lower end of the grinding disc two. One end of the rotating shaft two far from the grinding disc two is installed on the bearing seat two. A driven pulley two is installed on the rotating shaft two. A motor two is installed outside the box body. The motor two is connected with a motor shaft two. The motor shaft two is connected with a gear set two. A transmission belt two is installed on the driving pulley two and the driven pulley two of the gear set two in a matching manner.

[0011] A refrigerator is installed on the inner wall of the box body located in the processing chamber two.

[0012] A dehumidifier is installed on the inner wall of the box body located in the processing chamber two.

[0013] The electric heating wire is installed in the filter cavity in a spiral shape.

[0014] A baffle one is movably installed at one end of the transmission box close to the connection box two.

[0015] A baffle two is movably installed at one end of the material guiding disc two close to the fixed disc two and the grinding disc two.

[0016] The connection box one is provided with an annular groove. An annular snap ring is arranged at the upper end opening of the annular groove. A pair of leakage holes are symmetrically arranged at the lower end of the connection box one.

[0017] The beneficial effects of the present invention are as follows:

[0018] By installing two kinds of grinding discs, the present invention can grind the powder multiple times without screening out the powder in the middle; by making the preliminarily ground powder contact with the electric heating wire, the moisture existing in the powder is evaporated to prevent caking; by cooling and dehumidifying the processing chamber for secondary grinding, it is prevented that the processing temperature is too high to cause cold welding, and at the same time, the generation of condensed water can be prevented; by installing an electromagnetic vibrator and a conductive block, the adhesion of the powder is prevented. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is Figure 1 the enlarged view of part A in

[0021] Figure 3 is Figure 1Enlarged view at B in the [diagram];

[0022] Figure 4 It is a top view of the connection box of the present invention;

[0023] Figure 5 Is Figure 4 Cross-sectional view taken along the A-A direction in the [diagram];

[0024] Figure 6 It is a cross-sectional view of the connection box of the present invention.

[0025] The markings in the figure are: box body 101, collection box 102, transmission box 103, second partition 104, second connection box 105, second grinding disc 106, second fixing disc 107, cover plate 108, conductive block 109, installation cavity 110, second electromagnetic vibrator 111, cooler 112, dehumidifier 113, second material guiding disc 114, first partition 115, filter box 116, first connection box 117, first fixing disc 118, first grinding disc 119, first material guiding disc 120, hopper 121, filter screen 122, heating wire 123, first electromagnetic vibrator 124, annular snap ring 125, annular groove 126, leakage hole 127, second motor 128, first rotating shaft 129, first bearing seat 130, first transmission belt 131, first gear set 132, first motor 133, second rotating shaft 134, second transmission belt 135, second bearing seat 136, second gear set 137, second motor 138. Specific embodiments

[0026] As shown in the figure, a ceramic powder grinding device includes a box body 101. The box body 101 is provided with an openable door, and a sealing strip is installed at the contact position between the door and the box body 101. A hopper 121 is installed on the upper end surface of the box body 101 in a matching manner, and the lower end of the hopper 121 extends into the box body 101. A first partition 115 and a second partition 104 are fixedly installed at intervals in the middle of the box body 101. The first partition 115 and the second partition 104 divide the interior of the box body 101 into a first processing chamber, a second processing chamber, and a collection chamber from top to bottom in sequence. A first material guiding disc 120 is installed in the upper part of the first processing chamber. The cross-sectional shape of the inner material trough of the first material guiding disc 120 is an inverted triangle. The upper opening of the first material guiding disc 120 is located below the lower opening of the hopper 121, and the powder introduced by the hopper 121 will enter the first material guiding disc 120. A first fixing disc 128 and a first grinding disc 120 are installed in a matching manner below the first material guiding disc 120. A conical grinding chamber one is formed between the first fixing disc 128 and the first grinding disc 120. The lower opening of the first material guiding disc 120 is aligned with the upper opening of the conical grinding chamber one, and the contact position between the two is sealed, so that the powder entering the first material guiding disc 120 will flow into the conical grinding chamber one.

[0027] A rotating shaft 129 is fixedly installed in the middle of the lower end of the first grinding disc 119. One end of the rotating shaft 129 away from the first grinding disc 119 is installed on the first bearing seat 130, and the first bearing seat 130 is fixedly installed on the bracket installed in the box body 101. A first driven pulley is installed on the rotating shaft 129. A first motor 133 is installed outside the box body 101. The first motor 133 is connected with a first motor shaft, the first motor shaft is connected with a first gear set 132, a first driving belt 131 is installed on the first driving pulley of the first gear set 132 in a matching manner, and the other end of the first driving belt 131 passes through a through hole provided on the box body 101 and is installed on the first driven pulley in a matching manner. When the first motor 133 is started, the first motor 133 drives the first gear set 132 to drive the first driving belt 131 to rotate, so that the rotating shaft 129 drives the first grinding disc 119 to rotate, thereby grinding the powder in the first conical grinding cavity.

[0028] The first connection box 117 is in a circular ring shape. The first connection box 117 is provided with an annular groove 126. The upper slot opening of the annular groove 126 is provided with two annular snap rings 125. The two annular snap rings 125 have different radii but the same center. A pair of leakage holes 127 are symmetrically provided at the lower end of the first connection box 117. The horizontal height of the bottom of the annular groove 126 at a position away from the leakage holes 127 is higher than the horizontal height of the leakage holes 127. During installation, first, the first connection box 117 is sleeved on the lower end of the first grinding disc 119, and then one of the annular snap rings 125 with a larger radius is bonded to the first fixed disc at the lower cavity opening of the first conical grinding cavity, so that all the powder that has been initially ground in the first conical grinding cavity flows into the first connection box 117 and then flows out from the leakage holes 127.

[0029] A pair of filter boxes 116 are installed at the lower end of the first connection box 117 in a matching manner. Both the upper end and the lower end of the filter box 116 are provided with openings. The upper end of the filter box 116 is fixedly installed at the lower hole end of the leakage hole 127 of the first connection box 117 by welding, so that the powder flowing out from the leakage hole 127 enters the filter box 116. The lower opening of the filter box 116 is inserted into a first through hole provided on the first partition 115. A filter cavity is provided in the filter box 116. Filter meshes 122 are installed in both the upper part and the lower part of the filter cavity. The filter meshes 122 can filter out large particles in the powder that have not been sufficiently ground. An electric heating wire 123 is provided in the middle of the filter cavity. The electric heating wire 123 is connected to a power supply. The electric heating wire 123 is installed in the filter cavity in a spiral shape and fills the inside of the filter cavity as much as possible. The powder filtered by the upper filter mesh falls onto the electric heating wire 123 under the action of gravity. The heated electric heating wire 123 can evaporate the moisture in the powder falling on the electric heating wire 123 due to its high temperature. The high-density electric heating wire 123 can enhance the evaporation effect. Evaporating the moisture in the powder can prevent the powder from caking. In order to prevent the powder from falling on the electric heating wire 123 and being unable to fall, an electromagnetic vibrator 124 is installed on the outer wall of the filter box 116. The electromagnetic vibrator 124 can vibrate the filter box 116 to make the powder falling on the electric heating wire 123 fall as soon as possible.

[0030] Above the upper part inside the second processing chamber, a second material guiding plate 114 is installed. The second material guiding plate 114 is conical, and the upper port of the second material guiding plate 114 is aligned with the through hole one provided on the first partition plate 115, and the edge of the contact part between the two is sealed, so that the powder flowing out of the filter box 116 enters the second material guiding plate 114 through the through hole one. A second fixed plate 107 and a second grinding plate 106 are installed in a matching manner below the second material guiding plate 114. The distance between the second fixed plate 107 and the second grinding plate 106 is smaller, and the grinding surfaces of the second fixed plate 107 and the second grinding plate 106 are smoother. A conical grinding chamber two is formed between the second fixed plate 107 and the second grinding plate 106. The upper end opening of the conical grinding chamber two is aligned with the lower end opening of the second material guiding plate 114, and the contact part between the two is sealed. A second baffle is movably installed at one end of the second material guiding plate 114 close to the second fixed plate 107 and the second grinding plate 106. By pulling the second baffle, the lower end opening of the second material guiding plate 114 can be connected or disconnected from the conical grinding chamber two formed by the second fixed plate 107 and the second grinding plate 106, so that the powder in the second material guiding plate 114 can flow into the conical grinding chamber two or the powder in the conical grinding chamber two cannot enter the second material guiding plate 114.

[0031] In the middle of the lower end of the second grinding plate 106, a second rotating shaft 134 is fixedly installed. One end of the second rotating shaft 134 away from the second grinding plate 106 is installed on the second bearing seat 136, and the second bearing seat 136 is installed on the bracket installed in the box body 101. A second driven pulley is installed on the second rotating shaft 134. A second motor 128 is installed outside the box body 101. The second motor 128 is connected with a second motor shaft, and the second motor shaft is connected with a second gear set 137. A second transmission belt 135 is installed in a matching manner on the second driving pulley of the second gear set 137. The other end of the second transmission belt 135 passes through the through hole provided on the box body 101 and is installed on the second driven pulley in a matching manner. When the second motor 128 is started, the second motor 128 drives the second gear set 137 to drive the second transmission belt 135 to rotate, so that the second rotating shaft 134 drives the second grinding plate 106 to rotate, so as to further grind the powder in the conical grinding chamber two to make the powder meet the requirements.

[0032] A second connection box 105 is installed in a matching manner at the lower end of the second grinding plate 106. The structure and installation method of the second connection box 105 are similar to those of the first connection box 117. A pair of transmission boxes 103 are installed in a matching manner at the lower end of the second connection box 105. A first baffle is movably installed at one end of the transmission box 103 close to the second connection box 105. By pulling the first baffle, the powder in the second connection box 105 can enter the transmission box 103 or cannot enter the transmission box 103. During grinding, the powder in the conical grinding chamber two can be prevented from flowing out within a certain time by controlling the first baffle and the second baffle, so that the powder in the conical grinding chamber two can be fully ground.

[0033] One end of the second fixed disk 107 away from the second grinding disk 106 is installed with a cover plate 108 through bolt connection, and an installation cavity 110 is formed between the cover plate 108 and the second fixed disk 107. An electromagnetic vibrator 111 and a conductive block 109 are installed on the second fixed disk 107 located in the installation cavity 110, and one end of the conductive block 109 is in contact with the second conical grinding cavity. During grinding, the second fixed disk 107 can be vibrated by the electromagnetic vibrator 111 so that the powder does not adhere. The conductive block 109 can be connected to a conductive wire to conduct the static electricity generated by friction and prevent the powder from adhering due to static electricity.

[0034] Since the second grinding disk 106 rotates faster and the powder in the second conical grinding cavity is finer, high temperature will be generated in the second conical grinding cavity during grinding, and at the same time, the temperature of the second grinding disk 106 is also very high.

[0035] A refrigerator 112 is installed on the inner wall of the box body 101 located in the second processing chamber. On the one hand, the refrigerator 112 can reduce the temperature in the second grinding disk 106 and the second conical grinding cavity, prevent cold welding of the powder and increase the service life of the second grinding disk 106, and can also cool the powder that has just been evaporated of moisture and entered the second feeding disk 114. In order to prevent the generation of condensed water, a dehumidifier 113 is installed on the inner wall of the box body 101 located in the second processing chamber, so that the second processing chamber is kept relatively dry and low temperature.

[0036] One end of the transmission box 103 passes through a through hole two provided on the second partition plate 104 and extends into the collection chamber. A collection box 102 is arranged in the collection chamber. The collection box 102 is located below the transmission box 103, and the ground powder finally falls into the collection box 102.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A ceramic powder grinding device, characterized in that: It includes a box body (101). In the middle of the box body (101), a first partition plate (115) and a second partition plate (104) are installed at intervals, dividing the inside of the box body (101) into a first processing chamber, a second processing chamber and a collection chamber from top to bottom in sequence; in the upper part of the first processing chamber, a first feeding tray (120) is installed. Below the first feeding tray (120), a first fixed plate (118) and a first grinding plate (119) are installed in cooperation. A conical grinding chamber one is formed between the first fixed plate (118) and the first grinding plate (119). The upper opening of the conical grinding chamber one is aligned with the lower opening of the first feeding tray (120); a first connection box (117) is installed in cooperation with the lower end of the first grinding plate (119); a pair of filter boxes (116) are installed in cooperation with the lower end of the first connection box (117). Both the upper end and the lower end of the filter box (116) are provided with openings. A filter cavity is provided inside the filter box (116). Filter meshes (122) are provided in both the upper part and the lower part of the filter cavity. An electric heating wire (123) is provided in the middle of the filter cavity. An electromagnetic vibrator one (124) is installed on the outer wall of the filter box (116). The lower opening of the filter box (116) is inserted into a through hole one provided on the first partition plate (115). In the upper part of the second processing chamber, a second feeding tray (114) is installed. The second feeding tray (114) is conical. The upper opening of the second feeding tray (114) is aligned with the through hole one; a second fixed plate (107) and a second grinding plate (106) are installed in cooperation below the second feeding tray (114). A conical grinding chamber two is formed between the second fixed plate (107) and the second grinding plate (106). The upper opening of the conical grinding chamber two is aligned with the lower opening of the second feeding tray (114); a cover plate (108) is installed at one end of the second fixed plate (107) away from the second grinding plate (106). An installation cavity (110) is formed between the cover plate (108) and the second fixed plate (107). An electromagnetic vibrator two (111) and a conductive block (109) are installed on the second fixed plate (107) located in the installation cavity (110). One end of the conductive block (109) is in contact with the conical grinding chamber two; a second connection box (105) is installed in cooperation with the lower end of the second grinding plate (106); a pair of transmission boxes (103) are installed in cooperation with the lower end of the second connection box (105). One end of the transmission box (103) passes through a through hole two provided on the second partition plate (104) and extends into the collection chamber. A collection box (102) is provided in the collection chamber. A refrigerator (112) is installed on the inner wall of the box body (101) located in the second processing chamber. A dehumidifier (113) is installed on the inner wall of the box body (101) located in the second processing chamber. The first connection box (117) is provided with an annular groove (126). An annular snap ring (125) is provided at the upper notch of the annular groove (126). A pair of leakage holes (127) are symmetrically provided at the lower end of the first connection box (117).

2. The ceramic powder grinding device according to claim 1, characterized in that: A hopper (121) is installed at the upper end of the box body (101).

3. The ceramic powder grinding device according to claim 1, characterized in that: A rotating shaft one (129) is fixedly connected to the middle of the lower end of the grinding disc one (119). One end of the rotating shaft one (129) away from the grinding disc one (119) is installed on the bearing seat one (130). A driven pulley one is installed on the rotating shaft one (129). A motor one (133) is installed outside the box body (101). The motor one (133) is connected with a motor shaft one. The motor shaft one is connected with a gear set one (132). A transmission belt one (131) is installed on the driving pulley one and the driven pulley one of the gear set one (132) in a matching manner.

4. The ceramic powder grinding device according to claim 1, characterized in that: A rotating shaft two (134) is fixedly connected to the middle of the lower end of the grinding disc two (106). One end of the rotating shaft two (134) away from the grinding disc two (106) is installed on the bearing seat two (136). A driven pulley two is installed on the rotating shaft two (134). A motor two (128) is installed outside the box body (101). The motor two (128) is connected with a motor shaft two. The motor shaft two is connected with a gear set two (137). A transmission belt two (135) is installed on the driving pulley two and the driven pulley two of the gear set two (137) in a matching manner.

5. The ceramic powder grinding device according to claim 1, characterized in that: The electric heating wire (123) is installed in the filter cavity in a spiral shape.

6. The ceramic powder grinding device according to claim 1, characterized in that: A baffle one is movably installed at one end of the transmission box (103) close to the connection box two (105).

7. The ceramic powder grinding device according to claim 1, characterized in that: A baffle two is movably installed at one end of the material guiding disc two (114) close to the fixed disc two (107) and the grinding disc two (106).

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