Mineralizing agent adding mechanism for preparing calcium aluminate powder

Abstract

The utility model belongs to the technical field of water purification material production, and particularly relates to a mineralizer adding mechanism for calcium aluminate powder preparation, which comprises a weighing device, a screw conveyer, a mixing tank and a stirring device, and the weighing device is used for weighing the weight of a mineralizer; the screw conveyor is used for conveying the weighed mineralizing agent; the stirring device comprises a gear motor, a stirring shaft, a feeding pipe and a feeding pipe, the stirring shaft is in transmission connection with an output shaft of the gear motor, a storage cavity is formed in the stirring shaft, a stirring frame is arranged at the bottom of the stirring shaft, the top end of the feeding pipe is connected with a discharging port of the spiral conveyor, the bottom end of the feeding pipe is inserted into the storage cavity, and the feeding pipe is obliquely arranged; and the higher end of the feeding pipe is communicated with the bottom of the storage cavity. According to the device, through the stirring device, a mineralizing agent can be scattered while stirring is conducted, the mineralizing agent can be mixed into all layers of raw materials, the mixing uniformity of the raw materials is improved, the mineralizing efficiency of calcium aluminate powder is improved, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purification material production, and specifically relates to a mineralizer adding mechanism for preparing calcium aluminate powder. Background Art

[0002] The mineral composition of calcium aluminate powder is mainly calcium aluminate and calcium dialumate. It has strong activity and can react with inorganic acid at room temperature with large heat release and fast temperature rise. The dissolution rate of aluminum oxide can reach more than 90%. Using calcium aluminate powder as raw material to produce aluminum salt series water purifier can not only shorten the process flow, simplify the operation steps, but also improve product quality, reduce costs and reduce capital investment. Calcium aluminate powder has become one of the most important raw materials for the production of aluminum salt series water purifier.

[0003] In the prior art, bauxite and limestone are mainly used to produce calcium aluminate powder, and boron-containing minerals are added thereto as mineralizers, which destroy the Al-Si and Si-O bonds in CaAl2Si2O8, so that Si exists in the form of NaBSiO4 and CaSiO3, making Al easier to release from bauxite and improving the dissolution rate of alumina. At present, bauxite, limestone and mineralizers are generally directly put into a mixing tank for mixing. Due to the small amount of mineralizer used, it is difficult to mix evenly with bauxite and limestone, resulting in low mineralization efficiency of calcium aluminate powder, affecting product quality.

[0004] Therefore, improvements are urgently needed. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the utility model provides a mineralizer adding mechanism for preparing calcium aluminate powder, comprising a weighing device, a screw conveyor, a mixing tank and a stirring device, wherein the weighing device is used to weigh the weight of the mineralizer; the screw conveyor is used to transport the weighed mineralizer.

[0006] The upper part of the mixing tank is provided with a feeding port, and the lower part of the mixing tank is provided with a discharge port. The stirring device comprises a reduction motor, a stirring shaft, a feeding pipe and a plurality of feeding pipes. The reduction motor is arranged outside the mixing tank, and the stirring shaft is vertically arranged inside the mixing tank. The top end of the stirring shaft passes through the top wall of the mixing tank and is transmission-connected to the output shaft of the reduction motor through a bevel gear transmission pair. The top of the stirring shaft is open, and a storage cavity is arranged inside the upper end of the stirring shaft. A stirring frame is arranged at the bottom of the stirring shaft, and a stirring rod is fixedly connected between the stirring frame and the stirring shaft. The top end of the feeding pipe is connected to the discharge port of the screw conveyor, and the bottom end of the feeding pipe is inserted into the storage cavity of the stirring shaft, and the outer wall of the feeding pipe is rotatably connected to the inner wall of the storage cavity. The plurality of feeding pipes are obliquely arranged around the stirring shaft and located above the stirring frame. The higher end of the feeding pipe passes through the stirring shaft and is connected to the bottom of the storage cavity.

[0007] Optionally, the weighing device includes a weighing bucket, the top of which is open, a discharge pipe is provided at the bottom of the weighing bucket, a plurality of cantilevers are fixedly provided around the weighing bucket, a plurality of mounting plates equal to the number of cantilevers are correspondingly provided on the outer wall of the weighing bucket, a weighing sensor is fixedly connected between each mounting plate and the corresponding cantilever wall, and the weighing sensor is used to detect the weight of the weighing bucket and the material therein.

[0008] Optionally, the screw conveyor is arranged below the metering hopper, the feed port of the screw conveyor corresponds to the discharge pipe of the metering hopper, and the two are not connected to each other, and a heating jacket is arranged outside the screw conveyor.

[0009] Specifically, since boron mineral mineralizers, such as borax and boraxite, easily absorb moisture in the air and become damp and agglomerated, there is a possibility of clogging the pipeline. Therefore, when the mineralizer is transported by a screw conveyor, the mineralizer is heated by a heating jacket to prevent it from getting damp.

[0010] Optionally, a scraper plate is provided at the bottom of the feeding tube, and a gap of 0.5-1 cm is left between the scraper plate and the inner wall of the material storage cavity of the stirring shaft.

[0011] Specifically, when the reduction motor drives the stirring shaft to rotate, the mineralizer in the storage chamber is dispersed to the surrounding due to the centrifugal force, and some of the mineralizer may adhere to the inner wall of the storage chamber. The scraper plate can scrape off the mineralizer attached to the inner wall of the storage chamber. Since the stirring shaft may shake during the rotation, in order to avoid jamming, a certain gap is left between the scraper plate and the inner wall of the storage chamber of the stirring shaft.

[0012] Optionally, the bevel gear transmission pair includes a meshing vertical bevel gear and a horizontal bevel gear, the vertical bevel gear is mounted on the output shaft of the reduction motor, and the horizontal bevel gear is fixed on the outside of the stirring shaft.

[0013] Optionally, a manhole is provided on the outer wall of the mixing tank.

[0014] Specifically, the manhole facilitates maintenance personnel to perform maintenance on the equipment in the mixing tank.

[0015] Optionally, valves are provided at the feed pipe of the metering hopper and the discharge port of the mixing tank.

[0016] In particular, the valve facilitates the control of the discharge.

[0017] The utility model also includes other components that enable a mineralizer adding mechanism for preparing calcium aluminate powder to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the art, such as a reduction motor and a weighing sensor.

[0018] The working principle of the utility model is that when in use, crushed bauxite and limestone are put into the mixing tank through the feeding port, and then the mineralizer is put into the measuring hopper, and the mineralizer of corresponding weight is weighed according to the set ratio. The weighed mineralizer enters the feeding pipe after being evenly conveyed by the screw conveyor, and then falls into the storage cavity of the stirring shaft, and the reduction motor is started to drive the stirring shaft to rotate. The rotation of the stirring shaft drives the stirring frame, the stirring rod and the feeding pipe to rotate. The stirring frame and the stirring rod can mix and stir the raw materials in the mixing tank, and the mineralizer in the storage cavity of the stirring shaft is sprinkled into the mixing tank along the feeding pipe and mixed with the bauxite and limestone. In this way, the mineralizer is sprinkled while stirring, so that each layer of the raw material can be mixed with the mineralizer, and the uniformity of mixing between the raw materials is improved. After the mixing is completed, the material is discharged from the mixing tank from the discharge port.

[0019] The beneficial effect of the utility model is that, through the stirring device, the mineralizer can be sprinkled while stirring, so that each layer of the raw material can be mixed with the mineralizer, the uniformity of mixing between the raw materials is improved, the mineralization efficiency of the calcium aluminate powder is improved, and the product quality is improved; through the screw conveyor, the material is evenly fed, and the uniformity of the addition of the mineralizer is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of the structure of part A in the middle.

[0023] In the figure: 1. screw conveyor, 2. metering bucket, 3. cantilever, 4. mounting plate, 5. weighing sensor, 6. heating sleeve, 7. mixing tank, 8. feeding port, 9. discharge port, 10. reduction motor, 11. stirring shaft, 12. feeding pipe, 13. feeding pipe, 14. bevel gear transmission pair, 15. storage chamber, 16. stirring frame, 17. stirring rod, 18. scraper plate, 19. manhole, 20. valve. DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0025] Example

[0026] like Figure 1-2 As shown, the embodiment of the utility model provides a mineralizer adding mechanism for preparing calcium aluminate powder, including a weighing device, a screw conveyor 1, a mixing tank 7 and a stirring device, the weighing device is used to weigh the weight of the mineralizer; the weighing device includes a measuring bucket 2, the top of the measuring bucket 2 is open, the bottom of the measuring bucket 2 is provided with a feeding pipe, a plurality of cantilevers 3 are fixedly provided around the measuring bucket 2, a plurality of mounting plates 4 equal to the number of cantilevers 3 are correspondingly provided on the outer wall of the measuring bucket 2, a weighing sensor 5 is fixedly connected between each mounting plate 4 and the corresponding cantilever wall, and the weighing sensor 5 is used to detect the weight of the measuring bucket 2 and the material therein.

[0027] The screw conveyor 1 is used to convey the weighed mineralizer; the screw conveyor 1 is arranged below the measuring bucket 2, the feed port of the screw conveyor 1 corresponds to the discharge pipe of the measuring bucket 2, and the two are not connected to each other. A heating sleeve 6 is arranged on the outside of the screw conveyor 1. Since boron mineral mineralizers, such as borax and boraxite, easily absorb moisture in the air and become damp and agglomerated, there is a possibility of clogging the pipeline. Therefore, when the screw conveyor 1 is used to convey the mineralizer, the mineralizer is heated by the heating sleeve 6 to prevent it from getting damp.

[0028] The upper part of the mixing tank 7 is provided with a feeding port 8, the lower part of the mixing tank 7 is provided with a discharge port 9, the stirring device includes a reduction motor 10, a stirring shaft 11, a feeding pipe 12 and two feeding pipes 13, the reduction motor 10 is arranged outside the mixing tank 7, the stirring shaft 11 is vertically arranged inside the mixing tank 7, the top end of the stirring shaft 11 passes through the top wall of the mixing tank 7, and is connected to the output shaft of the reduction motor 10 through a bevel gear transmission pair 14, the top of the stirring shaft 11 is open, and the upper end of the stirring shaft 11 is provided with a storage cavity 15, and the stirring shaft A stirring frame 16 is provided at the bottom of 11, and a stirring rod 17 is fixedly connected between the stirring frame 16 and the stirring shaft 11, the top end of the feeding pipe 12 is connected to the discharge port of the screw conveyor 1, the bottom end of the feeding pipe 12 is inserted into the storage cavity 15 of the stirring shaft 11, and the outer wall of the feeding pipe 12 and the inner wall of the storage cavity 15 are rotatably connected, the two feeding pipes 13 are respectively obliquely arranged on the left and right sides of the stirring shaft 11 and located above the stirring frame 16, the higher end of the feeding pipe 13 penetrates into the stirring shaft 11 and is communicated with the bottom of the storage cavity 15.

[0029] In addition, a scraper plate 18 is provided at the bottom of the feeding tube 12, and a gap of 1 cm is left between the scraper plate 18 and the inner wall of the storage chamber 15 of the stirring shaft 11. When the reduction motor 10 drives the stirring shaft 11 to rotate, the mineralizer in the storage chamber 15 is dispersed to the surrounding due to the centrifugal force, and some of the mineralizer may adhere to the inner wall of the storage chamber 15. The scraper plate 18 can scrape off the mineralizer attached to the inner wall of the storage chamber 15. Since the stirring shaft 11 may shake during the rotation process, a certain gap is left between the scraper plate 18 and the inner wall of the storage chamber 15 of the stirring shaft 11 to avoid jamming. The bevel gear transmission pair 14 includes a meshing vertical bevel gear and a horizontal bevel gear. The vertical bevel gear is installed on the output shaft of the reduction motor 10, and the horizontal bevel gear is fixed on the outside of the stirring shaft 11. A manhole 19 is provided on the outer wall of the mixing tank 7, and the manhole 19 is convenient for maintenance personnel to repair the equipment in the mixing tank 7. The discharge pipe of the metering hopper 2 and the discharge port 9 of the mixing tank 7 are both provided with valves 20, and the valves 20 are convenient for controlling the discharge.

[0030] The working principle of the utility model is that when in use, the crushed bauxite and limestone are put into the mixing tank 7 through the feeding port 8, and then the mineralizer is put into the measuring bucket 2, and the mineralizer of corresponding weight is weighed according to the set ratio. The weighed mineralizer enters the feeding pipe 12 after being evenly conveyed by the screw conveyor 1, and then falls into the storage chamber 15 of the stirring shaft 11, and the reduction motor 10 is started to drive the stirring shaft 11 to rotate. The rotation of the stirring shaft 11 drives the stirring frame 16, the stirring rod 17 and the feeding pipe 13 to rotate. The stirring frame 16 and the stirring rod 17 can mix and stir the raw materials in the mixing tank 7, and the mineralizer in the storage chamber 15 of the stirring shaft 11 is sprinkled into the mixing tank 7 along the feeding pipe 13 and mixed with the bauxite and limestone. In this way, the mineralizer is sprinkled while stirring, so that each layer of the raw material can be mixed with the mineralizer, and the uniformity of mixing between the raw materials is improved. After the mixing is completed, the material is discharged from the mixing tank 7 from the discharge port 9.

[0031] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A mineralizer adding mechanism for preparing calcium aluminate powder, comprising a weighing device, a screw conveyor, a mixing tank and a stirring device, characterized in that: The weighing device is used to weigh the mineralizer; the screw conveyor is used to convey the weighed mineralizer; The upper part of the mixing tank is provided with a feeding port, and the lower part of the mixing tank is provided with a discharge port. The stirring device comprises a reduction motor, a stirring shaft, a feeding pipe and a plurality of feeding pipes. The reduction motor is arranged outside the mixing tank, and the stirring shaft is vertically arranged inside the mixing tank. The top end of the stirring shaft passes through the top wall of the mixing tank and is transmission-connected to the output shaft of the reduction motor through a bevel gear transmission pair. The top of the stirring shaft is open, and a storage cavity is arranged inside the upper end of the stirring shaft. A stirring frame is arranged at the bottom of the stirring shaft, and a stirring rod is fixedly connected between the stirring frame and the stirring shaft. The top end of the feeding pipe is connected to the discharge port of the screw conveyor, and the bottom end of the feeding pipe is inserted into the storage cavity of the stirring shaft, and the outer wall of the feeding pipe is rotatably connected to the inner wall of the storage cavity. The plurality of feeding pipes are obliquely arranged around the stirring shaft and located above the stirring frame. The higher end of the feeding pipe passes through the stirring shaft and is connected to the bottom of the storage cavity.

2. The mineralizer adding mechanism for preparing calcium aluminate powder according to claim 1, characterized in that: The weighing device includes a weighing bucket, the top of which is open, a feeding pipe is arranged at the bottom of the weighing bucket, a plurality of cantilevers are fixedly arranged around the weighing bucket, a plurality of mounting plates equal to the number of cantilevers are arranged on the outer wall of the weighing bucket, and a weighing sensor is fixedly connected between each mounting plate and the corresponding cantilever wall.

3. The mineralizer adding mechanism for preparing calcium aluminate powder according to claim 2, characterized in that: The screw conveyor is arranged below the metering hopper, the feed port of the screw conveyor corresponds to the discharge pipe of the metering hopper, and the two are not connected to each other, and a heating jacket is arranged outside the screw conveyor.

4. The mineralizer adding mechanism for preparing calcium aluminate powder according to claim 3, characterized in that: A scraper plate is arranged at the bottom of the feeding pipe, and a gap of 0.5-1 cm is left between the scraper plate and the inner wall of the material storage cavity of the stirring shaft.

5. The mineralizer adding mechanism for preparing calcium aluminate powder according to claim 4, characterized in that: The bevel gear transmission pair comprises a meshing vertical bevel gear and a horizontal bevel gear, the vertical bevel gear is mounted on the output shaft of the reduction motor, and the horizontal bevel gear is fixed on the outside of the stirring shaft.

6. The mineralizer adding mechanism for preparing calcium aluminate powder according to claim 5, characterized in that: A manhole is arranged on the outer wall of the mixing tank.

7. The mineralizer adding mechanism for preparing calcium aluminate powder according to claim 6, characterized in that: Valves are provided at the discharge pipe of the metering hopper and the discharge port of the mixing tank.

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