WO2021008003A1

WO2021008003A1 - Powder roller press capable of thoroughly crushing

Info

Publication number: WO2021008003A1
Application number: PCT/CN2019/114601
Authority: WO
Inventors: 王海燕; 何立春; 陈冬冬; 崔欣欣; 丁祥翔; 顾锋
Original assignee: 江苏新业重工股份有限公司
Priority date: 2019-07-18
Filing date: 2019-10-31
Publication date: 2021-01-21
Also published as: CN110180624A

Abstract

A powder roller press capable of thoroughly crushing, comprising: a base (1), wherein a material conveying track (2) is provided on the base (1); press rollers (3) are provided above the material conveying track (2); the number of press rollers is two, and the press rollers are horizontally arranged; power motors (4) are provided on the base (1); transmission gears (5) are provided at two ends of the press rollers (3); the power motors (4) are connected to the transmission gears (5) by means of transmission chains (6); the power motors (4) drive the press rollers (3) to rotate; a feeding hopper (7) is provided above the press rollers (3); a filter screen (8) is provided at the lower end of the feeding hopper (7); telescopic air cylinders (9) are provided at two ends of the filter screen (8); the filter screen (8) is driven to shake by means of repeated extending and retracting of the telescopic air cylinders (9); a discharging chute (10) is provided on one side of the filter screen (8); a crushing box (11) is provided at the lower end of the discharging chute (10); a crushing mill (12) is provided in the crushing box (11); and powder exceeding the standard is subjected to secondary grinding by means of the crushing mill (12). Hence, feeding and selecting can be simultaneously performed, so that the working efficiency is improved, and raw materials having a large particle size are conveyed into the crushing box (11) to be crushed, so that the problem of increased device vibration due to large raw material particle size is avoided.

Description

A powder roller press with thorough crushing

Technical field

The invention relates to the field of cement manufacturing, in particular to a powder roller press with thorough pulverization.

Background technique

At present, when manufacturing cement, it is necessary to roll-compact clinker, pozzolan, small crushed stone and gypsum into powder for preparing cement, and the particle size of clinker, pozzolan and gypsum can meet the requirements, only small crushed stone is It is formed by crushing large-scale quarry stones. When the crusher is replaced with a new hammer, the particle size of the small crushed stones is very small, which can meet the particle size requirements of the roller press. When the hammer head wears for a period of time, especially in the later period, the particle size of the small crushed stone discharged from the crusher seriously exceeds the standard, the average particle size is 60mm, and the largest diameter exceeds 120mm, which causes the vibration of the roller press to increase and the system to stop. Therefore, it is necessary to pay special attention to the particle size of the raw materials during processing. At present, the raw materials are generally sent to the roller press after the initial grinding process. The addition of a process leads to an increase in processing time, and not all incoming materials are incorrect. Qualified, uniform grinding will cause repeated operations, and separate screening is a waste of time. Therefore, it is particularly important to solve the problem of increased vibration of the equipment due to the excessive particle size of the raw material during the rolling of the powder roller press.

Summary of the invention

In order to solve the above problems, the purpose of the present invention is to provide a completely crushed powder roller press. The squeeze roller is driven to rotate by a power motor, and then the material is rolled, and an upper hopper can be selected for auxiliary feeding during feeding. And the particle size of the raw materials is selected through the filter screen, and the material is selected at the same time, which improves the work efficiency, and the raw materials with larger particle size are sent to the crushing box for pulverization to avoid the increase of equipment vibration due to the large particle size of the raw materials problem.

The present invention provides a thoroughly crushed powder roller press, which includes a base, a material transport track is arranged on the base, a squeeze roller is arranged above the material transport track, and the number of the squeeze roller is two, And horizontally, the base is provided with a power motor, the squeeze roller is provided with a transmission gear at both ends, the power motor is connected to the transmission gear through a transmission chain, and the squeeze roller is driven to rotate by the power motor. An upper hopper is provided above, and a filter screen is provided at the lower end of the upper hopper. Both ends of the filter screen are provided with telescopic cylinders. The repeated expansion and contraction of the telescopic cylinder drives the filter screen to shake. A discharging chute is arranged on the side, a crushing box is arranged at the lower end of the discharging chute, and a crushing mill is arranged in the crushing box, and the powder that exceeds the standard is pulverized through the crushing mill.

A further improvement is that: a scooping shovel is arranged next to the squeezing roller, and the scooping scoop is attached to the squeezing roller body to prevent the squeezing roller from sticking to the squeezing roller when the squeezing roller crushes the material, which affects the crushing effect.

The further improvement lies in that: an air blowing nozzle is arranged on the blanking chute, which is connected to the air pump through the blowing nozzle to blow air into the blanking chute to assist the blanking.

A further improvement is that: the end of the conveying track is provided with a lowering chute, and the distributing is performed through the lowering chute, the lower end of the lowering chute is provided with a return pipe, and the lowering chute and the upper hopper are connected through the return pipe An auxiliary fan is arranged on the material return pipeline, and the material return is assisted by the auxiliary fan.

The beneficial effects of the present invention: the squeezing roller is driven to rotate by the power motor, and then the material is rolled, and the upper hopper can be used for auxiliary feeding during the feeding, and the particle size of the raw material is selected through the filter screen, The material is selected at the same time to improve work efficiency, and the larger particle size of the raw material is sent to the crushing box for pulverization, to avoid the problem of increased vibration of the equipment due to the larger size of the raw material, and to remove the adhering to the squeeze roller by the scoop Raw material, avoid the material sticking to the squeeze roller when the squeeze roller crushes the material, which will affect the crushing effect.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention.

Among them: 1- base, 2- transport track, 3- squeeze roller, 4- power motor, 5- transmission gear, 6-transmission chain, 7- upper hopper, 8- filter screen, 9- telescopic cylinder, 10 -Unloading chute, 11-crushing box, 12-crushing mill, 13-clearing shovel, 14-blowing nozzle, 15-discharging trough, 16-return pipe, 17-auxiliary fan.

Detailed ways

In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

As shown in Figure 1, this embodiment provides a powder roller press with thorough pulverization, including a base 1, on which a material transport track 2 is arranged, and a squeeze roller 3 is arranged above the material transport track 2 The number of the squeeze rollers 3 is two, and they are arranged horizontally, the base 1 is provided with a power motor 4, both ends of the squeeze roller 3 are provided with a transmission gear 5, and the power motor 4 is connected by a transmission chain 6. On the transmission gear 5, the squeeze roller 3 is driven to rotate by the power motor 4. An upper hopper 7 is provided above the squeeze roller 3, and a filter screen 8 is provided at the lower end of the upper hopper 7 and the filter screen 8 There are telescopic cylinders 9 provided at both ends of the telescopic cylinder 9, the filter screen 8 is swayed by the repeated expansion and contraction of the telescopic cylinder 9, one side of the filter screen 8 is provided with a blanking chute 10, and the lower end of the blanking chute 10 is provided with The pulverizing box 11 is provided with a pulverizing mill 12, and the powder that exceeds the standard is pulverized through the pulverizing mill 12 for the second time. A cleaning shovel 13 is provided beside the squeeze roller 3, and the cleaning shovel 13 is attached to the squeeze roller 3 to prevent the squeeze roller 3 from sticking to the squeeze roller 3 when the squeezing roller 3 crushes the material, which affects the crushing effect. The blanking chute 10 is provided with a blowing nozzle 14 which is connected to an air pump through the blowing nozzle 14 to blow air into the blanking chute 10 to assist the blanking. A feeding trough 15 is provided at the end of the material conveying track 2 through which the feeding trough 15 is used for distributing materials. The lower end of the feeding trough 15 is provided with a return pipe 16 which is connected to the feeding trough 15 through the return pipe 16. And the upper hopper 7, an auxiliary fan 17 is provided on the material return pipeline 16, and the auxiliary fan 17 assists the material return. The squeeze roller 3 is driven to rotate by the power motor 4, and then the material is rolled, and the upper hopper 7 can be used for auxiliary feeding when feeding, and the particle size of the raw material is selected through the filter screen 8, while feeding Select to improve work efficiency, and send raw materials with larger particle sizes to the crushing box 11 for pulverization, to avoid the problem of increased vibration of the equipment due to the larger particle size of the raw materials, and to remove the adhesion on the squeeze roller 3 through the scoop 13 The raw material of the squeeze roller 3 is prevented from sticking to the squeeze roller 3 when the material is crushed, which will affect the crushing effect.

Claims

A completely crushed powder roller press, comprising a base (1), a material conveying track (2) is arranged on the base (1), and a squeezing roller (3) is arranged above the material conveying track (2) , The number of the squeeze rollers (3) is two, and they are arranged horizontally, the base (1) is provided with a power motor (4), and both ends of the squeeze roller (3) are provided with transmission gears (5). ), the power motor (4) is connected to the transmission gear (5) through the transmission chain (6), and the squeeze roller (3) is driven to rotate by the power motor (4), characterized in that: the squeeze roller (3) is above An upper hopper (7) is provided, a filter screen (8) is provided at the lower end of the upper hopper (7), and two ends of the filter screen (8) are provided with telescopic cylinders (9), which pass through the telescopic cylinder (9). The repeated expansion and contraction of) drives the filter screen (8) to sway. One side of the filter screen (8) is provided with a discharging chute (10), and the lower end of the discharging chute (10) is provided with a crushing box (11). ), the crushing box (11) is provided with a crushing mill (12), and the powder that exceeds the standard is pulverized through the crushing mill (12).
A completely crushed powder roller press according to claim 1, characterized in that: a cleaning shovel (13) is arranged beside the squeezing roller (3), and the cleaning shovel (13) is attached to the squeezing roller (3). The body of the roller (3) prevents the squeezing roller (3) from sticking to the squeezing roller (3) when the material is crushed, which will affect the crushing effect.
A completely crushed powder roller press according to claim 1, characterized in that: the discharging chute (10) is provided with a blowing nozzle (14), which is connected to On the air pump, blow air into the feeding chute (10) to assist the feeding.
A completely crushed powder roller press according to claim 1, characterized in that: the end of the conveying track (2) is provided with a feeding trough (15), and the feeding trough (15) is used to divide the material into two parts. The lower end of the lower chute (15) is provided with a return pipe (16), and the lower chute (15) and the upper hopper (7) are connected through the return pipe (16). An auxiliary fan (17) is arranged on the ), and the auxiliary fan (17) is used to assist the material return.