CN209531034U - Green mud powder grinds equipment - Google Patents

Abstract

The utility model relates to green mud powder grinding equipment, which comprises a vertical mill, wherein the side surface of the vertical mill is provided with a feed inlet, the bottom of the vertical mill is provided with an air inlet, and the top of the vertical mill is provided with a discharge air outlet; the output end of the feeding assembly is connected with the feeding hole of the vertical mill; the input end of the discharging component is connected with a discharging air outlet of the vertical mill; and the draught fan is connected with the air inlet of the vertical mill. The utility model discloses a vertical mill can grind coarse grain green mud into the green mud powder that the fineness accords with the regulation requirement, is convenient for prepare excellent performance's novel composite admixture, extensively is arranged in cement and concrete. The utility model has the advantages of simple production process, low energy consumption, low cost, stable product quality and low environmental pollution.

Description

A green clay powder grinding equipment

technical field

The utility model relates to a green mud powder grinding equipment.

Background technique

After drying and sorting the green mud of the paper mill, most of the fine powder is extracted and utilized, and the remaining green mud with coarse particle size needs further treatment before it can be used. Green mud is the waste produced in the alkali recovery process of papermaking enterprises. The main component is calcium carbonate, and there are also some oxides formed by residual alkali. After drying, the moisture is generally about 2%, and the viscosity is strong, not easy to powder Therefore, choosing an appropriate grinding method is the key to the subsequent disposal and utilization of green mud. In the production of traditional ball mills, the steel balls in the mill will generate static electricity due to the collision between the steel balls, and the surface is easy to absorb fine powder, resulting in a reduction in grinding efficiency. .

Utility model content

The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art, and to provide a green clay powder grinding equipment.

The utility model is realized through the following technical scheme: a green mud powder grinding equipment, comprising a vertical mill, the side of the vertical mill is provided with a feed port, its bottom is provided with an air inlet, and its top A discharge air outlet is provided; a feed assembly, the output end of the feed assembly is connected to the feed port of the vertical mill; a discharge assembly, the input end of the discharge assembly is connected to the vertical mill The discharge air outlet of the machine is connected; the induced draft fan is connected with the air inlet of the vertical mill.

Compared with the prior art, the utility model can grind the coarse-grained green mud into the green mud powder whose fineness meets the specified requirements through the vertical mill, which is convenient to be prepared into a new type of composite admixture with excellent performance, which is widely used in cement and in concrete. The utility model has the advantages of simple production process, low energy consumption, low cost, stable product quality and low environmental pollution.

Further, the vertical mill includes a machine body, a main transmission device arranged outside the machine body, a grinding assembly and a fine powder sorting device arranged inside the machine body; a body base is fixedly provided at the bottom of the machine body; Below the base of the body; the grinding assembly is fixed above the base of the body, and is inserted through the base of the body to connect with the output end of the main transmission device; the fine powder sorting device corresponds to the The discharge air outlet is fixedly arranged above the grinding assembly.

The green slime can be fully ground by setting the grinding assembly; the fine powder sorting device can screen the fine powder precision required by the user.

Further, the main transmission device includes a first motor, a set of gear reducer, a first rotating shaft and a coupling connected in sequence; the first rotating shaft is connected to the input end of the grinding assembly through the coupling.

The grinding assembly can be driven via the main drive.

Further, the grinding assembly includes a rotating shaft, a rotating frame, several swing rods, grinding rollers, grinding rings, a knife seat, and several blades; the bottom end of the rotating shaft passes through the base of the body, and is connected with the first The rotating shaft is connected through the coupling; the center position of the rotating frame is fixedly connected with the top of the rotating shaft; the edge of the rotating frame is fixed with several hinges at equal angles around its center; the top of the swing rod It is hinged with the hinge part of the rotating frame; the grinding roller is rotatably connected with the bottom end of the swing rod; the grinding ring is fixedly embedded in the inner edge of the body base; the knife seat is inserted and fixed on the rotating on the shaft; the blade is fixed on the upper surface of the knife holder, the blade is arranged at equal angles around the center of the blade holder, and forms an acute angle with the surface of the blade holder, and the top of the blade is located on the Below the grinding ring.

Further, the side of the body base is provided with several ventilation holes connecting the air inlet and the inner cavity of the body.

By arranging the ventilation holes, a whirlwind can be formed at the bottom of the machine body by using the separating machine, so that the green mud can be better blown into between the grinding roller and the grinding ring, and then the green mud can be better ground.

Further, the fine powder sorting device mainly includes a second motor, a second rotating shaft, and an impeller assembly; the second motor is fixedly arranged at the center of the top of the body; the second motor is fixedly connected to the second rotating shaft ; The second rotating shaft is fixedly connected with the rotating shaft of the impeller assembly.

By setting the impeller assembly, the powder with larger particle size can be sieved and dropped into the grinding assembly to continue to be fully ground; by adjusting the speed of the second motor, the amount of powder discharged from the vertical mill after grinding can be adjusted. The particle size of fine powder.

Further, the feeding assembly includes a silo and a feeding metering device connected to each other; the silo is fixedly arranged on one side of the vertical mill; the output end of the feeding metering device is connected to the vertical mill The feeding port of the machine is connected.

Further, the discharge assembly includes a cyclone dust collector, a bag filter, an exhaust fan and a closed powder conveyor; the air inlet of the cyclone dust collector is connected to the discharge outlet of the vertical mill. The tuyere is connected through a pipeline; the air outlet of the cyclone dust collector is connected with the air inlet of the bag filter through a pipeline; the air outlet of the bag filter is connected with the exhaust fan; the closed The type powder conveyor is fixedly arranged below the outlet of the cyclone dust collector and the bag dust collector.

The fine powder can be collected by the cyclone dust collector and discharged to the closed powder conveyor.

Further, the air inlet of the induced draft fan is connected with the air outlet of the cyclone dust collector through a pipeline.

By connecting the air inlet of the induced draft fan and the air outlet of the cyclone dust collector, the gas discharged from the cyclone dust collector can be recovered and returned to the vertical mill through the induced draft fan recycle.

Description of drawings

Fig. 1 is the structural diagram of a kind of green clay powder grinding equipment of the present utility model;

Fig. 2 is a partial cross-sectional structural schematic diagram of the utility model neutral mill.

In the figure: 11, the body; 111, the base of the body; 112, the ventilation hole; 121, the first motor; 122, the gear reducer; 123, the first rotating shaft; 124, the first coupling; 131, the rotating shaft; 132, Rotating frame; 133, pendulum; 134, grinding roller; 135, grinding ring; 136, knife seat; 137, blade; 141, second motor; 142, second rotating shaft; 143, impeller assembly; 21, hopper ; 22, feeding metering device; 31, cyclone dust collector; 32, bag filter; 33, exhaust fan; 34, closed powder conveyor; 40, induced draft fan.

Detailed ways

Please refer to Fig. 1 to Fig. 2, a kind of green slime powder grinding equipment of the present embodiment comprises vertical mill, and the side of described vertical mill is provided with feed inlet, and its bottom is provided with air inlet, and its The top is provided with a discharge air outlet; a feed assembly, the output end of the feed assembly is connected to the feed port of the vertical mill; a discharge assembly, the input end of the discharge assembly is connected to the vertical mill The discharge air outlet of the mill is connected; the induced draft fan 40 is connected with the air inlet of the vertical mill.

Preferably, the vertical mill includes a body 11, a main transmission device arranged outside the body 11, a grinding assembly and a fine powder sorting device arranged inside the body 11; a body base 111 is fixedly provided at the bottom of the body 11; The main transmission device is fixedly arranged below the body base 111; the grinding assembly is fixedly arranged above the body base 111, and is inserted through the body base 111 to connect with the output end of the main transmission device; The fine powder sorting device is fixedly arranged above the grinding assembly corresponding to the discharge air outlet.

Preferably, the main transmission device includes a first motor 121, a set of gear reducer 122, a first rotating shaft 123 and a coupling connected in sequence; the first rotating shaft and the input end of the grinding assembly pass through the coupling Shaft connection.

Preferably, the grinding assembly includes a rotating shaft 131, a rotating frame 132, four swing rods 133, four grinding rollers 134, a grinding ring 135, a knife seat 136, and several blades 137; the bottom end of the rotating shaft 131 penetrates pass through the body base 111, and connect with the first rotating shaft through the coupling; the center position of the rotating frame 132 is fixedly connected with the top of the rotating shaft 131; the edge of the rotating frame 132 goes around its center, etc. Four hinges are fixed at an angle; the top of the swing rod 133 is hinged to the hinge of the swivel frame 132; the grinding roller 134 is rotatably connected to the bottom end of the swing rod 133; the grinding ring 135 is fixedly embedded in the inner edge of the body base 111; the knife seat 136 is inserted and fixed on the rotating shaft 131; The center of the knife seat 136 is set at an equal angle and forms a sharp angle with the surface of the knife seat 136 . The top of the spatula 137 is located below the grinding ring 135 .

Preferably, the side of the body base 111 is provided with several ventilation holes 112 communicating with the air inlet and the inner cavity of the body.

Preferably, the fine powder sorting device mainly includes a second motor 141, a second rotating shaft 142, and an impeller assembly 143; the second motor 141 is fixedly arranged at the center of the top of the body 11; the second motor 141 is fixedly connected with the second rotating shaft 142 ; the second rotating shaft 142 is fixedly connected with the rotating shaft of the impeller assembly 143 .

Preferably, the feeding assembly includes a silo 21 and a feeding metering device 22 connected to each other; the silo 21 is fixedly arranged on one side of the vertical mill; the output end of the feeding metering device 22 is connected to the The feed port of the vertical mill is connected.

Preferably, the discharge assembly includes a cyclone dust collector 31, a bag filter 32, an exhaust fan 33 and an enclosed powder conveyor 34; the air inlet of the cyclone dust collector 31 is connected to the vertical The discharge air outlet of the mill is connected through a pipeline; the air outlet of the cyclone dust collector 31 is connected with the air inlet of the bag filter 32 through a pipeline; the air outlet of the bag filter 32 is connected with the The exhaust fan 33 is connected; the closed powder conveyor 34 is fixedly arranged below the outlets of the cyclone dust collector 31 and the bag dust collector 32 .

Preferably, the air inlet of the induced draft fan 40 is connected to the air outlet of the cyclone dust collector 31 through a pipeline.

The working principle of this embodiment:

First, the green mud to be ground enters the silo 21, and is evenly fed into the feed port of the vertical mill by the feeding metering device 22; Grinding on the assembly; Specifically, the green mud falls onto the knife seat 136 through the feed port; at the same time, the first motor 121 drives the gear reducer 122, and then drives the first rotating shaft 123 to rotate, so The first rotating shaft 123 drives the rotating shaft 131 to rotate through the first coupling 124; then the rotating shaft drives the knife seat 136 to rotate together; when the knife seat 136 rotates, it drives the green mud to rotate, and the The green mud enters the gap position between the grinding roller 134 and the grinding ring 135 through the spatula 137; at the same time, the rotating shaft 131 drives the rotating frame 132 to rotate, and then the rotating frame 132 hinged The swing rod 133 swings outwards by centrifugal force, so that the grinding roller 134 swings outwards, presses the grinding ring 135 and rotates relative to the grinding ring 135, so as to achieve the effect of crushing green mud.

Furthermore, at this time, the green mud is ground into fine powder, and the induced draft fan 40 blows air from the bottom of the vertical mill, and the air enters the inner cavity of the body through the through hole of the body base 111 to form a cyclone airflow , take the fine powder to the fine powder sorting device for sorting; specifically, the second motor 141 drives the second rotating shaft 142, and then drives the impeller assembly 143, and the fine powder with smaller particle size The powder can pass through the impeller assembly 143 and be discharged from the discharge outlet of the vertical mill, and the fine powder with a larger particle size is blocked by the impeller assembly 143 and falls to the grinding assembly to continue fully grinding. grind.

Finally, the fine powder enters the cyclone dust collector 31 after passing through the discharge outlet of the vertical mill, and the fine powder is separated and collected by the cyclone dust collector 31 to become a finished product. The discharge port of the cyclone dust collector 31 is discharged onto the closed powder conveyor 34; at the same time, the air outlet of the cyclone dust collector 31 is connected with the air inlet of the bag filter 32, partly The fine powder enters the bag dust collector 32 through the air outlet of the cyclone dust collector 31, and is recycled into a finished product, which is discharged from the outlet of the bag dust collector 32 to the closed powder conveying On machine 34.

In addition, the air outlet of the cyclone dust collector 31 is connected to the air inlet of the induced draft fan 40, so that most of the gas discharged from the cyclone dust collector 31 returns to the vertical mill through the induced draft fan 40 Recycle, and reduce the loss of fine powder.

Compared with the prior art, the utility model can grind the coarse-grained green mud into the green mud powder whose fineness meets the specified requirements through the vertical mill, which is convenient to be prepared into a new type of composite admixture with excellent performance, which is widely used in cement and In concrete; by setting the ventilation ring, a cyclone airflow can be formed in the vertical mill, so that the green mud can better enter the gap between the grinding ring and the grinding roller for grinding, and better grind the The fine powder is discharged to the fine powder sorting device; by connecting the air outlet of the cyclone dust collector and the air inlet of the induced draft fan, the gas is recycled to reduce the loss of fine powder; the utility model has a production process Simple, low energy consumption, low cost, stable product quality and low environmental pollution.

The above-mentioned embodiment only expresses one implementation mode of the utility model, and its description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (9)

1. a kind of green mud powder grinding apparatus, it is characterised in that: including

Vertical grinder, the side of the vertical grinder are equipped with feed inlet, and bottom is equipped with air inlet, and top is equipped with discharging outlet Mouthful；

Feeding assembly, the output end of the feeding assembly are connect with the feed inlet of the vertical grinder；

Discharge component, the input terminal of the discharge component are connect with the discharging gas outlet of the vertical grinder；

Air-introduced machine, the air-introduced machine are connect with the air inlet of the vertical grinder.

2. green mud powder grinding apparatus according to claim 1, it is characterised in that: the vertical grinder includes body, sets It sets in extra-organismal main drive, be arranged in the intracorporal grinding assembly of machine and fine powder sorting unit；The organism bottom is fixed Equipped with body pedestal；The main drive is fixed at the lower section of the body pedestal；The grinding assembly fixed setting In the top of the body pedestal, and it is inserted through the body pedestal and is connect with the output end of the main drive；It is described thin Powder sorting unit corresponds to the top that the discharging gas outlet is fixed at the grinding assembly.

3. green mud powder grinding apparatus according to claim 2, it is characterised in that: the main drive includes successively connecting First motor, set of gears speed reducer, first rotating shaft and the shaft coupling connect；The input of the first rotating shaft and the grinding assembly End is connected by the shaft coupling.

4. green mud powder grinding apparatus according to claim 3, it is characterised in that: the grinding assembly include rotary shaft, Swivel mount, several swing rods, grinding roller, bull ring, tool apron, several perching knives；The bottom end of the rotary shaft is inserted through the body pedestal, and It is connect with the first rotating shaft by the shaft coupling；The fixed company in the center of the swivel mount and the rotary shaft top It connects；The edge of the swivel mount is installed with several articulated sections around at an angles such as its centers；The top of the swing rod and the swivel mount Articulated section it is hinged；The bottom end of the grinding roller and the swing rod is rotatablely connected；The bull ring fixation is embedded in the body pedestal Inward flange；The tool apron is interspersed to be fixed in the rotary shaft；The perching knife is fixed on the upper surface of the tool apron, the perching knife It is arranged around angles such as the tool apron centers, and with tool apron surface at sharp angle, the top of the perching knife is located under the bull ring Side.

5. green mud powder grinding apparatus according to claim 4, it is characterised in that: if the side of the body pedestal is equipped with The ventilation hole of air inlet and body inner cavity is led in involvement.

6. green mud powder grinding apparatus according to claim 2, it is characterised in that: the fine powder sorting unit mainly includes Second motor, the second shaft, impeller assembly；Second motor is fixed at the center at the top of the body；It is described Second motor is fixedly connected with the second shaft；Second shaft is fixedly connected with the shaft of the impeller assembly.

7. green mud powder grinding apparatus described in any one according to claim 1~6, it is characterised in that: the feeding assembly Including feed bin interconnected and feeding measurement device；The feed bin is fixed at the vertical grinder side；The feeding The output end of metering device is connect with the feed inlet of the vertical grinder.

8. green mud powder grinding apparatus according to claim 7, it is characterised in that: the discharge component includes cyclone dust collection Device, bag filter, exhaust blower and closed powder conveyer；The air inlet of the rotoclone collector and the vertical grinder The air outlet that discharges is connected by pipeline；The air inlet of the gas outlet of the rotoclone collector and the bag filter passes through pipeline Connection；The gas outlet of the bag filter is connect with the exhaust blower；The closed powder conveyer is fixed at institute Below the discharge port for stating rotoclone collector and the bag filter.

9. green mud powder grinding apparatus according to claim 8, it is characterised in that: the air inlet of the air-introduced machine with it is described The gas outlet of rotoclone collector is connected by pipeline.