Calcium hydroxide grading powder selecting device

Abstract

The utility model discloses a calcium hydroxide classification powder selecting device, which belongs to the technical field of chemical raw material production equipment and comprises a classification tank body and a turbine classifier connected with the classification tank body, the classification tank body is provided with a classification cavity and a feed port communicated with the classification cavity, and the turbine classifier is provided with a fine powder discharge port communicated with the classification cavity. A material blocking assembly is arranged in the grading cavity and comprises a material guiding shaker, a discharging pipe connected with the lower end of the material guiding shaker and a material blocking disc arranged below the discharging pipe, a discharging channel communicated with the grading cavity is formed between the discharging pipe and the material blocking disc, a plurality of rotating powder cleaning brushes are arranged on the edge of the material blocking disc, and the powder cleaning brushes extend upwards to shield the discharging channel. Powder discharging holes are further formed in the material blocking disc, and the centrifugal force of the material blocking disc is utilized, so that the materials have enough power to collide with the powder cleaning brush. And the powder cleaning brush can brush off calcium hydroxide powder attached to the calcium hydroxide waste residues, so that the calcium hydroxide powder is separated from the calcium hydroxide waste residues.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical raw material production equipment, in particular to a calcium hydroxide grading powder selection device. Background Art

[0002] The production process of chemical products primarily involves powders and liquids, with powders comprising the majority. Calcium hydroxide produced in chemical production typically exists in powder form. The final step in the calcium hydroxide production line involves screening the calcium hydroxide powder through a powder selection device, which is then sent to the packaging process for packaging. The calcium hydroxide waste residue is then discharged and collected separately. Existing powder selection equipment primarily operates by spreading the material into the selection chamber via a spreading disc. However, this method of selection has limitations. After spreading, the material often undergoes only a single sorting process in the selection chamber. This results in a large amount of calcium hydroxide powder remaining in the calcium hydroxide waste residue, making it impossible to effectively separate it. This results in low calcium hydroxide production and conversion rates. Utility Model Content

[0003] The purpose to be achieved by the utility model is to provide a calcium hydroxide grading powder selection device to solve the problem that the existing calcium hydroxide grading powder selection device only performs a sorting process once, resulting in a large amount of calcium hydroxide powder remaining in the calcium hydroxide waste residue and cannot be effectively separated; thereby causing low calcium hydroxide output and low conversion rate.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a calcium hydroxide grading and powder selection device, comprising a grading tank body and a turbine classifier connected to the grading tank body, the grading tank body having a grading chamber and a feed port connected to the grading chamber, the turbine classifier having a fine powder discharge port connected to the grading chamber, a material blocking assembly being provided in the grading chamber, the material blocking assembly comprising a material guide shake, a material discharge pipe connected to the lower end of the material guide shake and a material blocking disk provided below the material discharge pipe, a material discharge channel connected to the grading chamber being provided between the material discharge pipe and the material blocking disk, a plurality of rotating powder cleaning brushes being provided on the edge of the material blocking disk, the powder cleaning brushes extending upward to block the discharge channel, a powder discharge hole being also provided on the material blocking disk, and the grading tank body is also provided with a driving assembly for driving the material blocking disk to rotate.

[0005] Furthermore, a first discharge shake is provided below the grading tank body, a second discharge shake is provided below the first discharge shake, an air intake channel is provided between the first discharge shake and the second discharge shake, and an air intake pipe connected to the air intake channel is provided on the grading tank body.

[0006] Furthermore, a waste residue discharge port is provided at the bottom of the second discharge shake.

[0007] Furthermore, a filter screen is provided in the grading tank body, and the filter screen is located on the gas flow path from the grading chamber to the fine powder discharge port.

[0008] Furthermore, the drive assembly includes a transmission shaft and a drive motor. The transmission shaft extends from the upper end of the grading tank into the discharge pipe and is fixedly connected to the material blocking plate. The drive motor is fixed on the outside of the grading tank and connected to the transmission shaft.

[0009] Furthermore, support legs are provided on the outer side of the grading tank.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model relates to a material processing device, specifically, a design related to the classification of calcium hydroxide materials. The calcium hydroxide material to be classified enters the hopper from the feed port, and with the help of gravity, the material falls onto the baffle plate through the discharge pipe. The baffle plate is driven to rotate by a drive assembly. When the material falls on the baffle plate in a rotating state, it will be thrown out of the baffle plate due to the centrifugal force generated by the rotation. A rotatable powder cleaning brush is provided at the edge of the baffle plate. After being thrown out of the baffle plate, the material will collide with the powder cleaning brush, or be thrown out of the baffle plate as the powder cleaning brush rotates. The utility model utilizes the centrifugal force of the baffle plate, so that the material has enough power to collide with the powder cleaning brush. The powder cleaning brush can brush off the calcium hydroxide powder attached to the calcium hydroxide waste residue, thereby realizing the separation of the calcium hydroxide powder and the calcium hydroxide waste residue. This design effectively solves the problem that after the existing powder selection mechanism has been used for one powder selection, a large amount of calcium hydroxide powder still exists in the calcium hydroxide waste residue, and effective separation cannot be achieved. This design further improves the powder selection effect of calcium hydroxide powder, reduces the waste of calcium hydroxide powder, and increases the output of finished materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional diagram of a calcium hydroxide grading and powder selection device of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a calcium hydroxide grading powder selection device of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the material retaining plate and the powder cleaning brush of the present invention;

[0016] Figure 4 This is a schematic diagram of the position of the discharge channel of the utility model;

[0017] Figure 5This is a schematic diagram of the overall structure of a calcium hydroxide grading powder selection device of the present utility model.

[0018] In the figure: 1 grading tank body, 11 grading chamber, 12 first discharging shaker, 13 second discharging shaker, 14 air inlet channel, 15 air inlet pipe, 16 waste residue discharge port, 2 turbine classifier, 21 fine powder discharge port, 3 feed port, 4 material blocking assembly, 41 material guide shaker, 42 discharge pipe, 43 material blocking plate, 44 discharging channel, 45 powder cleaning brush, 46 powder discharge hole, 5 drive assembly, 51 transmission shaft, 52 drive motor, 6 filter screen, 7 support leg. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0020] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0021] like Figures 1 to 5 As shown, the utility model provides a calcium hydroxide grading and powder selection device, including a grading tank body 1 and a turbine classifier 2 connected to the grading tank body 1, the grading tank body 1 has a grading chamber 11 and a feed port 3 connected to the grading chamber 11, the turbine classifier 2 has a fine powder discharge port 21 connected to the grading chamber 11, a material blocking component 4 is provided in the grading chamber 11, the material blocking component 4 includes a material guide shake 41, a feed pipe 42 connected to the lower end of the material guide shake 41 and a material blocking disk 43 arranged below the feed pipe 42, a discharge channel 44 connected to the grading chamber 11 is provided between the feed pipe 42 and the material blocking disk 43, the edge of the material blocking disk 43 is provided with a plurality of rotating powder cleaning brushes 45, the powder cleaning brushes 45 extend upward to block the discharge channel 44, the material blocking disk 43 is also provided with a powder discharge hole 46, and the grading tank body 1 is also provided with a driving component 5 for driving the material blocking disk 43 to rotate.

[0022] The grading tank body 1 and the turbine classifier 2 are any turbine classifiers in the prior art. The feed port 3 is arranged above the grading tank body 1. The opening of the feed port 3 is upward and obliquely connected to the grading chamber 11. The fine powder discharge port 21 of the turbine classifier 2 is used to discharge the extracted calcium hydroxide powder. The guide shake 41 of the material blocking component 4 is located in the middle of the grading chamber 11 and is aligned with the feed port 3. The material is poured into the guide shake 41 from the feed port 3. A hollow cylindrical discharge pipe 42 is provided below the guide shake 41. The lower end of the discharge pipe 42 is open. The guide shake 41 and the discharge pipe 42 form a material channel that is partially isolated from the grading chamber 11 and is not affected by the wind force of the turbine classifier 2. Influence, a disc-shaped retaining plate 43 is provided just below the discharge pipe 42. There is a gap of 10 cm between the retaining plate 43 and the discharge pipe 42. This gap forms a discharge channel 44 for the material to enter the grading chamber 11. The retaining plate is kept rotating by the drive assembly 5. A plurality of cleaning brushes 45 are provided on the outer edge of the retaining plate 43. The upper end of the cleaning brush 45 abuts against the lower end of the turbine classifier 2. The plurality of cleaning brushes 45 form a material receiving cavity in the middle of the retaining plate, and the material falling from the discharge pipe 42 falls into the material receiving cavity. Working principle: the calcium hydroxide material to be classified enters the hopper from the feed port 3. With the help of gravity, the material falls onto the retaining plate 43 through the discharge pipe 42. The retaining plate 43 is driven to rotate by the drive assembly 5. When the material falls on the retaining plate 43 in a rotating state, it will be thrown out of the retaining plate 43 due to the centrifugal force generated by the rotation. A rotatable cleaning brush 45 is provided at the edge of the retaining plate 43. After the material is thrown out of the retaining plate 43, it will collide with the powder cleaning brush 45, or be thrown out of the retaining plate 43 as the powder cleaning brush 45 rotates. The utility model cleverly utilizes the centrifugal force of the retaining plate 43, so that the material has enough power to collide with the powder cleaning brush 45. The powder cleaning brush 45 can brush off the calcium hydroxide powder attached to the calcium hydroxide waste residue, thereby achieving the separation of calcium hydroxide powder and calcium hydroxide waste residue. This design effectively solves the problem that after the existing powder selection mechanism has a large amount of calcium hydroxide powder in the calcium hydroxide waste residue after one powder selection, and effective separation cannot be achieved, thereby achieving the purpose of improving the powder selection effect of calcium hydroxide powder, reducing the waste of calcium hydroxide powder, and increasing the output of finished materials.

[0023] The utility model is provided with a first discharging shake 12 at the bottom of the grading tank body 1, and a second discharging shake 13 is provided below the first discharging shake 12. An air inlet channel 14 is provided between the first discharging shake 12 and the second discharging shake 13, and an air inlet pipe 14 connected with the air inlet channel 14 is provided on the grading tank body 1; the first discharging shake 12 and the second discharging shake 13 have the same structure, both of which are cone-shaped bodies that narrow downward, so as to facilitate the discharge of heavy calcium hydroxide residue that is not affected by wind force to the waste residue discharge port 16. There is a gap of 10 cm between the first discharging shake 12 and the second discharging shake 13, and the gap forms the air inlet channel 14. The lower opening of the first discharging shake 12 is inserted into the interior of the second discharging shake 13 and is not connected to the first discharging shake 12, so that it can be ensured that the waste residue will not be discharged from the first discharging shake 12 between the second discharging shake 13 and the second discharging shake 13. The air flows out from between the first and second discharge shakers 13, which also ensures that the second discharge shaker 13 can be connected with the grading chamber 11. An air inlet pipe 14 is provided on the outside of the grading tank body 1, and the air inlet pipe 14 is connected to the air inlet channel 14. The working principle is that when the air flow enters the air inlet channel 14 and the grading chamber 11 tangentially from the air inlet pipe 14, due to the high-speed rotation of the impeller of the turbine classifier 2, a negative pressure area is formed between the grading chamber 11, the first discharge shaker 12, and the second discharge shaker 13, forming an air column that rotates and rises from the bottom of the grading tank body 1, and the calcium hydroxide powder and calcium hydroxide waste residue in the grading chamber 11 are affected by the interaction of centripetal attraction, centrifugal force and gravity. The powder is light in weight and rises under the influence of the air column. It is discharged from the fine powder discharge port 21 as the grading wheel, while the calcium hydroxide waste residue is heavy and falls downward, thereby realizing the separation of the calcium hydroxide waste residue and the powder.

[0024] The retaining plate 43 is provided with a powder discharge hole 46 , so that the calcium hydroxide powder falling on the retaining plate 43 falls from the retaining plate 43 into the classification chamber 11 and is taken out of the classification chamber 11 by the turbine classifier 2 .

[0025] A filter screen 6 is also provided in the grading tank 1. The filter screen 6 is installed at the bottom of the turbine classifier 2 and is located on the top of the powder cleaning brush 45. The filter screen 6 can filter out calcium hydroxide powder that does not meet the size and improve the quality of calcium hydroxide powder extraction.

[0026] The driving assembly 5 is any one of the driving motors 52 and transmission shafts 51 in the prior art. The driving motor 52 and the transmission shaft 51 are driven by a transmission belt, and the transmission belt is covered by a protective shell. The driving motor 52 drives the transmission shaft 51 to rotate, and the transmission shaft 51 drives the material blocking plate to rotate.

[0027] The grading tank 1 is supported on the bottom surface by support legs 7 .

[0028] In addition to the above-mentioned preferred embodiments, the present invention has other implementation methods. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A calcium hydroxide grading and powder selection device, comprising a grading tank and a turbine classifier connected to the grading tank, wherein the grading tank has a grading cavity and a feed port communicating with the grading cavity, and the turbine classifier has a fine powder discharge port communicating with the grading cavity, characterized in that: A material blocking assembly is provided in the grading chamber, and the material blocking assembly includes a material guide shake, a material discharge pipe connected to the lower end of the material guide shake, and a material blocking plate provided below the material discharge pipe. A material discharge channel connected to the grading chamber is provided between the material discharge pipe and the material blocking plate. A plurality of rotating powder cleaning brushes are provided on the edge of the material blocking plate, and the powder cleaning brushes extend upward to block the material discharge channel. A powder discharge hole is also provided on the material blocking plate, and the grading tank body is also provided with a driving assembly for driving the material blocking plate to rotate.

2. The calcium hydroxide classification powder selection device according to claim 1, characterized in that, A first discharge shake is provided below the grading tank body, and a second discharge shake is provided below the first discharge shake. An air intake channel is provided between the first discharge shake and the second discharge shake, and an air intake pipe connected to the air intake channel is provided on the grading tank body.

3. The calcium hydroxide graded powder selection device according to claim 2, wherein A waste residue discharge port is provided at the bottom of the second discharge shake.

4. The calcium hydroxide classification powder selection device according to claim 1, characterized in that, A filter screen is further provided in the grading tank body, and the filter screen is located on the gas flow path from the grading chamber to the fine powder discharge port.

5. The calcium hydroxide classification powder selection device according to claim 1, characterized in that, The drive assembly includes a transmission shaft and a drive motor. The transmission shaft extends from the upper end of the grading tank into the discharge pipe and is fixedly connected to the baffle plate. The drive motor is fixed to the outside of the grading tank and connected to the transmission shaft.

6. The calcium hydroxide classification powder selection device according to claim 1, characterized in that, Support legs are provided on the outer side of the grading tank body.

Images