CN220257857U - Combined powder making equipment - Google Patents

Abstract

The utility model discloses a combined powder-making equipment. The grinding system includes an elevator, a mixing bin, a ring roller mill, a cyclone dust collector, a first tubular screw conveyor, a dry mixing mill and a finished product bin, which are connected in sequence. , the mixing chamber is fixedly equipped with a motor, the mixing chamber is connected to a mixing tube, and a ribbon-type stirring paddle is rotated in the mixing tube. The motor is fixedly connected to the ribbon-type stirring paddle, and the mixing tube is connected to the feed port of the ring roller mill; distribution The system includes a distribution bin and a second tubular screw conveyor connected in sequence. The second tubular screw conveyor is connected to a first screw quantitative feeder and a second screw quantitative feeder. The first screw quantitative feeder is connected to the mixing machine. In the warehouse, the second screw quantitative feeder is connected to the first tubular screw conveyor based on the auxiliary material pipe. The utility model uses a ring roller mill and a dry stirring mill in combination, and distributes modification additives through a spiral quantitative feeder, which effectively improves the modification effect and obtains modified heavy calcium carbonate with excellent functional quality.

Description

A kind of combined powder making equipment

Technical field

The utility model relates to the technical field of flour milling equipment, in particular to a combined milling equipment.

Background technique

Calcium carbonate has many advantages such as easy availability of raw materials, low price, good stability, pure color, and non-toxicity. It is widely used in plastics, rubber, papermaking, ink, building materials and other fields, becoming the most widely used filling material. According to the different production methods of calcium carbonate, calcium carbonate can be divided into heavy calcium carbonate, light calcium carbonate, colloidal calcium carbonate and crystalline calcium carbonate.

Among them, heavy calcium carbonate is usually produced by directly crushing natural calcite, limestone, chalk, shells, etc. by mechanical methods. However, ordinary heavy calcium carbonate cannot meet the needs of actual production. It is usually necessary to add modifications to heavy calcium carbonate. The existing modification method is to directly mix the raw material fragments of heavy calcium carbonate and the modifying additives into the grinding equipment for grinding. However, the function of the modified heavy calcium carbonate obtained by grinding in this way is Sexual quality is poor.

Utility model content

The purpose of this utility model is to overcome the shortcomings of the existing technology. The utility model provides a combined powder making equipment. The grinding system uses a ring roller mill and a dry stirring mill to grind the raw material fragments of heavy calcium carbonate. The grinding and distribution system quantitatively distributes the modification additives to the ring roller mill and dry stirring mill through the spiral quantitative feeder, effectively improving the modification effect of heavy calcium carbonate and obtaining modified heavy carbonic acid with excellent functional quality. calcium.

The utility model provides a combined powder-making equipment. The combined powder-making equipment includes a grinding system and a distribution system. The grinding system includes an elevator, a mixing bin, a ring roller mill, and a cyclone dust collector that are connected in sequence. , the first tubular screw conveyor, the dry mixing mill and the finished product warehouse, the feed end of the mixing warehouse is fixedly equipped with a motor, the discharge end of the mixing warehouse is connected to a mixing tube, and the mixing tube rotates A ribbon-type stirring paddle is provided, the output end of the motor is fixedly connected to the ribbon-type stirring paddle, and the mixing tube is connected to the feed port of the ring roller mill;

The distribution system includes a distribution bin and a second tubular screw conveyor connected in sequence. The discharge end of the second tubular screw conveyor is connected to a first screw quantitative feeder and a second screw quantitative feeder respectively. , the discharge end of the first screw quantitative feeder is connected to the mixing bin, and the discharge end of the second screw quantitative feeder and the first tubular screw conveyor are connected based on an auxiliary material pipe.

Specifically, the grinding system further includes a feeder, and the discharge end of the feeder is connected to the feed end of the elevator.

Specifically, the feeder includes a feeding hopper and a third tubular screw conveyor, and the outlet of the feeding hopper is fixedly connected to the inlet of the third tubular screw conveyor.

Specifically, the first screw quantitative feeder is connected to the second tubular screw conveyor based on a first butterfly valve, and the second screw quantitative feeder is connected to the second tubular screw conveyor based on a second butterfly valve. machine connection.

Specifically, the ring roller mill is connected to a first blower, and the air inlet of the first blower is connected to the air outlet of the cyclone dust collector.

Specifically, the dry mixing mill is connected with a second blower.

Specifically, a bag dust collector is connected to the exhaust port of the finished product bin.

Specifically, a plurality of partitions are arranged at fixed intervals in the finished product warehouse. The plurality of partitions are located between the feed port and the exhaust port of the finished product warehouse. The surfaces of the several partitions are in contact with the finished product warehouse. The feeding direction is vertical, and the horizontal height of the plurality of partitions gradually decreases in the direction away from the feeding opening of the finished product bin.

Specifically, the partition is a plastic partition or a metal partition.

Specifically, the first tubular screw conveyor is provided with a backup outlet, and the backup outlet is connected to a third butterfly valve.

Compared with the existing technology, the beneficial effects of this utility model are:

The utility model's combined powder making equipment includes a grinding system and a distribution system. The combination of the ring roller mill and the dry stirring mill of the grinding system has powerful grinding performance and can continuously and quickly grind heavy calcium carbonate. The raw material fragments are made into heavy calcium carbonate with fine particle size. The finer the particle size of heavy calcium carbonate, the larger the specific surface area of heavy calcium carbonate, and its surface can better coat the modifying additive and improve the efficiency of the heavy calcium carbonate. Better sexual results;

The second tubular screw conveyor of the distribution system can distribute the modified additives in the distribution bin to the first screw quantitative feeder and the second screw quantitative feeder. The first screw quantitative feeder can distribute the modified additives. The agent is quantitatively transported to the mixing chamber. The raw material fragments of heavy calcium carbonate and the modification aid are stirred and mixed by the spiral belt stirring paddle in the mixing tube and then fall into the ring roller mill for grinding and modification. The second spiral quantitative The feeder can quantitatively transport the modified additives to the first tubular screw conveyor. The powder ground by the ring roller mill and the modified additives are mixed by the first tubular screw conveyor and then transported to the dry mixing machine. Grinding and modification are carried out in the mill to ensure that the modification additives are evenly coated on the surface of heavy calcium carbonate to improve the modification effect during grinding;

It is first ground and modified in a ring roller mill, and then ground and modified in a dry mixing mill to effectively improve the modification effect of heavy calcium carbonate and obtain modified heavy calcium carbonate with excellent functional quality.

Description of the drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the combined powder making equipment in the embodiment of the present utility model;

Figure 2 is a schematic structural diagram of a feeder in an embodiment of the present utility model;

Figure 3 is a schematic diagram of the partition arrangement structure of the finished product warehouse in the embodiment of the present invention.

In the drawing, 100. Elevator; 200. Mixing bin; 210. Motor; 220. Mixing pipe; 300. Ring roller mill; 310. First blower; 400. Cyclone dust collector; 500. First tubular screw conveyor ; 510, auxiliary material pipe; 520, backup outlet; 530, third butterfly valve; 600, dry mixing mill; 610, second blower; 700, finished product warehouse; 710, bag dust collector; 720, partition; 810 , Distribution warehouse; 820, second tubular screw conveyor; 830, first screw quantitative feeder; 831, first butterfly valve; 840, second screw quantitative feeder; 841, second butterfly valve; 900, feeding device; 910, feeding hopper; 920, third tubular screw conveyor.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Figure 1 shows a schematic structural diagram of a combined powder-making equipment in an embodiment of the present invention. The combined powder-making equipment includes a grinding system and a distribution system. The grinding system includes an elevator 100 and a mixing bin connected in sequence. 200, ring roller mill 300, cyclone dust collector 400, first tubular screw conveyor 500, dry mixing mill 600 and finished product bin 700. The feed end of the mixing bin 200 is fixed with a motor 210. The mixing The discharge end of the bin 200 is connected to a mixing tube 220. A ribbon-type stirring paddle is rotated in the mixing tube 220. The output end of the motor 210 is fixedly connected to the ribbon-type stirring paddle. The mixing tube 220 It is connected to the feed port of the ring roller mill 300; the distribution system includes a distribution bin 810 and a second tubular screw conveyor 820 connected in sequence, and the discharge ends of the second tubular screw conveyor 820 are connected respectively. There is a first spiral quantitative feeder 830 and a second spiral quantitative feeder 840. The discharge end of the first spiral quantitative feeder 830 is connected to the mixing chamber 200. The second spiral quantitative feeder 840 The discharge end is connected to the first tubular screw conveyor 500 based on the auxiliary material pipe 510.

The combination of the ring roller mill 300 and the dry mixing mill 600 of the grinding system has powerful grinding performance and can continuously and quickly crush the raw materials of heavy calcium carbonate into heavy calcium carbonate with fine particle size. The finer the particle size of calcium carbonate, the greater the specific surface area of heavy calcium carbonate, and its surface can better coat the modification additives, resulting in better modification effects; the second tubular screw conveyor 820 of the distribution system The modifying additive in the distribution bin 810 can be distributed to the first screw quantitative feeder 830 and the second screw quantitative feeder 840. The first screw quantitative feeder 830 can quantitatively transport the modifying additive to the mixing bin. 200. The raw material fragments of heavy calcium carbonate and the modifying additive are stirred and mixed by the ribbon stirring paddle in the mixing tube 220, and then fall into the ring roller mill 300 for grinding and modification. The second spiral quantitative feeder 840 can quantitatively transport the modifying additives to the first tubular screw conveyor 500. The powder ground by the ring roller mill 300 and the modifying additives are mixed by the first tubular screw conveyor 500 and then transported to the dry process together. Grinding and modification are carried out in the mixing mill 600 to ensure that the modification additives are evenly coated on the surface of the heavy calcium carbonate to improve the modification effect during grinding; grind and modify it in the ring roller mill 300 first, and then enter the dry Grinding and modification in the Stirring Mill 600 can effectively improve the modification effect of heavy calcium carbonate and obtain modified heavy calcium carbonate with excellent functional quality.

In addition, the combined powder milling equipment of the present invention has high efficiency in producing modified heavy calcium carbonate, and the modified heavy calcium carbonate obtained has a regular shape, with small particle differences, and more than 90% of the modified heavy calcium carbonate is Calcium carbonate has regular and uniform shapes.

Figure 2 shows a schematic structural diagram of a feeder in an embodiment of the present invention. The grinding system also includes a feeder 900. The discharge end of the feeder 900 and the feed end of the elevator 100 Connection; specifically, the feeder 900 includes a feeding hopper 910 and a third tubular screw conveyor 920, and the outlet of the feeding hopper 910 is fixed to the inlet of the third tubular screw conveyor 920. connect. The feeder 900 can stably transport the raw material fragments of heavy calcium carbonate to the elevator 100 and maintain a constant supply, which is conducive to mixing the raw material fragments of heavy calcium carbonate with the modifying additive in proportion in the mixing chamber 200 .

In some specific embodiments, please refer to FIG. 1 , the first screw quantitative feeder 830 is connected to the second tubular screw conveyor 820 based on the first butterfly valve 831 , and the second screw quantitative feeder 840 Based on the connection between the second butterfly valve 841 and the second tubular screw conveyor 820, the distribution of the second tubular screw conveyor 820 to the first screw quantitative feeder 830 and the second screw quantitative feeder can be adjusted by adjusting the opening of the butterfly valve. The amount of modification aid for feeder 840.

In some specific embodiments, please refer to FIG. 1 , the ring roller mill 300 is connected to a first blower 310 , and the air inlet of the first blower 310 is connected to the air outlet of the cyclone dust collector 400 . The first blower 310 Air flow is provided to the ring roller mill 300, and the powder ground by the ring roller mill 300 is taken away and enters the cyclone dust collector 400. The powder and air flow are separated in the cyclone dust collector 400, the powder falls, and the air flow passes from the cyclone dust collector 400 The air flow is discharged from the air outlet, and the air flow will still entrain some powder. Connecting the air outlet of the cyclone dust collector 400 to the air inlet of the first blower 310 can re-send the air flow containing powder into the ring roller mill 300, reducing the amount of powder. Loss.

In some specific embodiments, please refer to Figure 1. The dry mixing mill 600 is connected to a second blower 610. The second blower 610 provides air flow for the dry mixing mill 600. After the dry mixing mill 600 is ground, The powder is carried away into the finished product warehouse 700; further, the exhaust port of the finished product warehouse 700 is connected to a bag dust collector 710. After the airflow carries the powder into the finished product warehouse 700, the airflow passes through the exhaust port of the finished product warehouse 700. After discharge, the bag dust collector 710 can intercept the powder entrained in the air flow and prevent the powder from leaking.

Figure 3 shows a schematic diagram of the partition arrangement structure of the finished product warehouse in an embodiment of the present invention. A number of partitions 720 are provided at fixed intervals in the finished product warehouse 700. The plurality of partitions 720 are located at the feed end of the finished product warehouse 700. Between the opening and the exhaust port, the plate surface of the plurality of partitions 720 is perpendicular to the feeding direction of the finished product bin 700, and the horizontal height of the plurality of partitions 720 is along the direction away from the feeding opening of the finished product bin 700. The direction gradually decreases. The specially arranged partitions 720 can separate the air flow and the powder. The air flow carrying the powder collides with the partition 720, and the inertial force is used to separate the powder, which can reduce the interception pressure of the bag dust collector 710. Specifically, the partition 720 is a plastic partition or a metal partition, which is strong and durable.

In some specific embodiments, please refer to FIG. 1 , the first tubular screw conveyor 500 is provided with a backup outlet 520 , and the backup outlet 520 is connected to a third butterfly valve 530 . 520 takes samples to check the state of the powder modified by the ring roller mill 300.

The working principle of the combined flour milling equipment of this utility model is:

The elevator 100 lifts the raw material fragments of heavy calcium carbonate to the mixing bin 200, and the second tubular screw conveyor 820 distributes the modifying additive in the distribution bin 810 to the first screw quantitative feeder 830 and the second screw The quantitative feeder 840 and the first screw quantitative feeder 830 quantitatively transport the modifying additive to the mixing bin 200. The raw material fragments of heavy calcium carbonate and the modifying additive are stirred in the mixing tube 220 by a ribbon-type stirring slurry. After stirring and mixing, they fall into the ring roller mill 300 for grinding and modification. The first blower 310 provides air flow for the ring roller mill 300, and takes away the powder ground by the ring roller mill 300 into the cyclone dust collector 400. The powder and The airflow is separated in the cyclone dust collector 400, and the powder falls to the first tubular screw conveyor 500. The second screw quantitative feeder 840 quantitatively delivers the modified additive to the first tubular screw conveyor 500, and passes through the ring roller. The powder and modification additives ground by the grinding mill 300 are mixed by the first tubular screw conveyor 500 and then transported together to the dry mixing mill 600 for grinding and modification. The second blower 610 is the dry mixing mill 600 Air flow is provided to take away the powder ground by the dry mixing mill 600 and enter the finished product bin 700 .

The combined powder making equipment of this utility model first grinds and modifies the heavy calcium carbonate in the ring roller mill 300, and then grinds and modifies the heavy calcium carbonate in the dry stirring mill 600, so that the heavy calcium carbonate can be ground and modified. The calcium carbonate is effectively refined and the modification additives are promoted to be evenly coated on the surface of the heavy calcium carbonate, which ultimately effectively improves the modification effect of the heavy calcium carbonate and obtains modified heavy calcium carbonate with excellent functional quality; and The combined powder milling equipment of this utility model has high efficiency in producing modified heavy calcium carbonate. The obtained modified heavy calcium carbonate has a regular shape with small particle differences. More than 90% of the modified heavy calcium carbonate has the shape Regular and uniform in form.

The above is a detailed introduction to the combined powder milling equipment provided by the embodiments of the present utility model. Specific examples are used in this article to illustrate the principles and implementation methods of the present utility model. The description of the above embodiments is only for assistance. Understand the method of the present utility model and its core idea; at the same time, for those of ordinary skill in the field, there will be changes in the specific implementation and application scope based on the idea of the present utility model. In summary, this specification The contents should not be construed as limitations of the present invention.

Claims (10)

1. A combined powder-making equipment, characterized in that the combined powder-making equipment includes a grinding system and a distribution system, and the grinding system includes an elevator, a mixing bin, a ring roller mill, and a cyclone dust collector that are connected in sequence. machine, a first tubular screw conveyor, a dry mixing mill and a finished product bin. The feed end of the mixing bin is fixedly equipped with a motor, and the discharge end of the mixing bin is connected to a mixing tube. In the mixing tube A spiral-belt stirring paddle is rotated, the output end of the motor is fixedly connected to the spiral-belt stirring paddle, and the mixing tube is connected to the feed port of the ring roller mill; The distribution system includes a distribution bin and a second tubular screw conveyor connected in sequence. The discharge end of the second tubular screw conveyor is connected to a first screw quantitative feeder and a second screw quantitative feeder respectively. , the discharge end of the first screw quantitative feeder is connected to the mixing bin, and the discharge end of the second screw quantitative feeder and the first tubular screw conveyor are connected based on an auxiliary material pipe. 2. The combined milling equipment of claim 1, wherein the grinding system further includes a feeder, and the discharge end of the feeder is connected to the feed end of the elevator. 3. The combined milling equipment of claim 2, wherein the feeder includes a feeding hopper and a third pipe screw conveyor, and the outlet of the feeding hopper is connected to the third pipe. The feed port of the screw conveyor is fixedly connected. 4. The combined milling equipment of claim 1, wherein the first spiral quantitative feeder is connected to the second tubular screw conveyor based on a first butterfly valve, and the second spiral quantitative feeder is connected to the second tubular screw conveyor based on a first butterfly valve. The feeder is connected to the second tubular screw conveyor based on the second butterfly valve. 5. The combined pulverizing equipment of claim 1, wherein the ring roller mill is connected to a first blower, and the air inlet of the first blower is connected to the air outlet of the cyclone dust collector. 6. The combined milling equipment of claim 1, wherein the dry mixing mill is connected to a second blower. 7. The combined powder-making equipment according to claim 1, characterized in that a bag dust collector is connected to the exhaust port of the finished product bin. 8. The combined milling equipment of claim 1, wherein a plurality of partitions are arranged at fixed intervals in the finished product bin, and the plurality of partitions are located at the feed inlet and exhaust port of the finished product bin. The surface of the partitions is perpendicular to the feeding direction of the finished product bin, and the horizontal height of the partitions gradually decreases in a direction away from the feed opening of the finished product bin. 9. The combined powder milling equipment of claim 8, wherein the partition is a plastic partition or a metal partition. 10. The combined flour milling equipment of claim 1, wherein the first tubular screw conveyor is provided with a backup outlet, and the backup outlet is connected to a third butterfly valve.