CN103894278B - A kind of powder song equipment and the method for the bent powder of preparation thereof - Google Patents

Abstract

The invention discloses a koji powder equipment and a method for preparing koji powder. The koji powder equipment includes a wind conveying system and a crushing mechanism connected with the wind conveying system, a koji powder buffer bin and a bag dust collector. The wind conveying system It includes induced draft fan, feeding air pipe, dust suction air pipe, dust gas air pipe and clean air air pipe. One end of the feeding air pipe is connected with the crushing mechanism, and the other end is connected with the koji powder buffer warehouse through a three-way switching valve. The upper end of the powder buffer bin is connected to the dust air duct, and the dust suction duct is connected in parallel with the dust air duct to form a closed pipeline, and the three-way switching valve is also connected to a comprehensive controller; The method steps for preparing koji powder include koji crushing, koji powder wind conveying, koji powder collection and environmental dust removal; the present invention can monitor the crushing quality in real time and effectively control the crusher by crushing koji powder and transporting koji powder under full negative pressure. The working temperature greatly improves the conveying efficiency.

Description

A kind of koji powder equipment and method for preparing koji powder

technical field

The invention belongs to the technical field of brewing, and relates to koji powder equipment and a method for preparing koji powder.

Background technique

During the brewing process, the koji is broken into powdery particles called koji. A large amount of dust will be generated during the koji powder process, which will seriously pollute the production environment and cause damage to the workers. However, to achieve dust-free koji, the following two problems must be solved , One is to break the koji block in a sealed state, and the other is to transport the crushed koji powder in a sealed state. In order to solve the above two problems, the traditional process is to use a complete sealing device on the powder koji equipment to realize crushing in a sealed state and transport koji powder in a sealed state. However, this method is only theoretically possible and does not Practical operability, the existing problems mainly include: First, in a completely sealed state, the crushing quality of the crusher cannot be controlled in real time. In the sealed state, the dust density is extremely high, and the visibility is extremely low, and it is impossible to pass through internal or external devices. Carry out time monitoring; second, when the crusher is crushing, the working temperature will gradually increase with the extension of time, and it will accelerate the temperature rise in a sealed state. If the temperature is not lowered in time, it will cause an accident and seriously affect the powder. The third is to transport koji powder in a sealed state. The koji powder particles are small and light in weight. A large amount of koji powder will float in the sealed cavity, causing the koji powder to be unable to be transported.

Contents of the invention

In order to solve the above problems, the invention provides a koji powder equipment and a method for preparing koji powder. The block-shaped koji is broken into powdery koji powder by the crushing mechanism, and the koji powder is transported to the corresponding koji point for utilization under the guidance of wind force. By crushing koji pieces and conveying koji powder under full negative pressure, the crushing quality can be monitored in real time, the working temperature of the crusher can be effectively controlled, and the conveying efficiency can be improved.

The object of the present invention is achieved through the following technical solutions.

A powder koji equipment, comprising a wind conveying system and a pulverizing mechanism connected with the wind conveying system, a koji powder storage bin and a bag filter, the wind conveying system includes an induced draft fan, a feeding air pipe, a dust suction air pipe, and a dust air blower. One end of the feeding air pipe is connected with the crushing mechanism, and the other end is connected with the koji powder buffer warehouse through a three-way switching valve. The upper end of the koji powder buffer warehouse is connected with the dust air pipe. The air duct and the dust air duct are connected in parallel to the crushing mechanism to form a closed pipeline. The inlet of the bag filter is connected to the dust air duct, and the outlet is connected to the clean air duct. The clean air duct passes through the induced draft fan and The atmosphere is connected, and the three-way switching valve is also connected with a comprehensive control instrument.

The feeding air pipe is provided with a discharge and air supply valve.

Using the above technical scheme, the induced draft fan is used as the power source for the powder delivery, and the negative pressure of the pipeline is generated by the induced draft fan, and the koji powder entering the feeding air pipe is moved from the high pressure area to the low pressure area through the discharge air supply valve, and at the same time, the koji powder can enter The specific running direction of the buffer bin and the mother song metering bin is controlled by the three-way switching valve, which is connected to the integrated controller. Run in the designated direction and enter the designated curved point, so as to realize real-time monitoring of the crushing quality during the crushing process of curved blocks.

The lower end of the koji powder buffer storehouse is provided with a cyclone dust collector.

With the above technical scheme, the koji powder is separated from the feeding air pipe through the cyclone dust collector. The function of the cyclone dust collector is to separate the koji powder from the air, and the separated koji powder enters the finger point; the separated air enters the dust gas Air duct, because the dust air duct is connected to the inlet of the bag filter, a small amount of koji powder contained in the dust air duct is filtered by the bag filter, deposited at the bottom of the bag filter, and enters the feed through the discharge and air supply valve. The air duct starts the second cycle; since the outlet of the bag filter is connected to the clean air duct, the air filtered by the bag filter has less impurities and a higher degree of cleanliness, which meets the national emptying standards and can pass through the clean air duct Exhausted into the atmosphere to improve the delivery efficiency.

The crushing mechanism includes a primary crushing mechanism or a multi-stage crushing mechanism, wherein the primary crushing mechanism is composed of one or more crushers connected in parallel, and the multi-stage crushing mechanism is formed by connecting multiple crushers in series with crushing values ranging from large to small. become.

The multi-stage crushing mechanism includes a claw crusher and a fine hammer crusher, wherein the crushing value of the claw crusher is primary crushing, and the crushing value of the hammer fine crusher is final crushing, and the bent pieces are crushed by the claw crusher. Then enter the hammer crusher for crushing.

The outlet of the claw crusher is provided with a powder iron remover, and the outlet of the powder iron remover is connected in series with the hammer mill.

An automatic limiter is arranged below the feed inlet of the claw crusher. The size of the feed port is controlled by the opening and closing action of the automatic limiter. When the feed of the bent block is fast, the feed port becomes smaller; when the feed of the bent block is slow, the feed port becomes larger. The capacity is effectively controlled, which effectively solves the problem of system temperature rise.

The vertical elevation of the outlet of the crushing mechanism is lower than the elevation of the inlet of the bag filter.

A method for preparing koji powder using the above-mentioned koji powder equipment, the method mainly includes crushing koji pieces and conveying koji powder under a complete negative pressure state, and the negative pressure is realized by an induced draft fan and a wind conveying system connected with the induced draft fan 204. The specific method steps are as follows:

a. Crushing of koji pieces: first put the koji pieces into the claw crusher for first-stage crushing, and then crush the massive koji pieces into granular koji powder through the second stage, and the second stage is broken into a hammer for fine crushing The hammer crusher is connected in series with a claw crusher, two fine hammer crushers are connected in parallel and then connected in series with a claw crusher, or one fine hammer crusher is connected in series with a secondary hammer crusher and then connected with a claw crusher ;

b. Pneumatic conveying of koji powder: After the massive koji pieces described in step a are broken into granular koji powder through the second stage, the koji powder enters the sealed feeding air pipe through the discharge air valve, and operates the three-way switch The valve controls the flow direction of the koji powder, and under the guidance of the wind, the koji powder enters the cyclone dust collector and bag filter for collection along the feeding air pipe;

c, koji powder collection: after the koji powder as described in step b enters the cyclone dust collector and the bag filter under the guidance of the wind force, the koji powder is separated from the gas by the cyclone dust collector, and the koji powder directly enters the storage device, containing dust The gas then enters the bag filter to collect the remaining dust, and enters the koji powder wind conveying pipeline for circulation, separation and collection, while the clean gas is discharged into the atmosphere through the clean air duct;

d. Environmental dust removal: The pipeline of the koji powder wind conveying system is extended to each dust raising point, and the dust is captured through the dust collection hood and collected and utilized.

The three-way switching valve is controlled by an integrated controller, and the integrated controller issues opening and closing instructions to the three-way switching valve, so that the koji powder runs in a specified direction and enters a specified use point.

The beneficial effects of the present invention are:

Compared with prior art, the present invention has following advantage:

(1) The crushing ability is strong, and the jamming machine will not be blocked;

(2) Equipped with a strong iron removal device, the service life of the stencil and the hammer is long;

(3) Due to the use of full negative pressure working mode and the control of the three-way switching valve through the integrated controller, the directional flow of the wind force can prevent the dust from leaking out, the crushing quality can be monitored in real time, and the crushing efficiency can be improved. At the same time, by setting the automatic limiter Can effectively control the temperature rise of the crushing device;

(4) Due to the use of negative pressure wind conveying, the layout is flexible and convenient, the dust does not leak out, is less affected by the environment, and has no two-way pollution;

(5) adopting the koji powder equipment of the present invention and the method for preparing koji powder thereof, its conveying distance is far, generally up to 70m, and up to 120m after expansion;

(6) There can be multiple curved points, which is convenient to switch;

(7) The recycling of dust is more convenient and easy;

(8) Through the extended use of negative pressure wind, the problem of dust at the feeding point is solved.

Description of drawings

Fig. 1 is a structural schematic diagram of Embodiment 1 of the present invention;

Fig. 2 is a schematic structural diagram of Embodiment 2 of the present invention;

Fig. 3 is a schematic structural diagram of Embodiment 3 of the present invention.

In the figure: 101-claw crusher, 102-powder iron remover, 103-hammer fine crusher, 104-automatic limiter, 105-hammer secondary crusher, 201-discharging air valve, 202-feeding air Pipe, 203-three-way switching valve, 204-induced fan, 205-dust suction duct, 206-dust air duct, 207-clean air duct, 301-cyclone dust collector, 302-bag dust collector, 401-use Curve point, 402-curve powder cache warehouse.

detailed description

The technical solution of the present invention is further described below in conjunction with the accompanying drawings of the embodiments, but the scope of protection is not limited to the description.

Embodiment 1: As shown in Figure 1, a kind of koji powder equipment according to the present invention includes a wind power conveying system and a crushing mechanism connected to the wind power conveying system, a koji powder buffer storehouse 402 and a bag filter 302. The system includes an induced draft fan 204, a feeding air duct 202, a dust suction duct 205, a dust air duct 206 and a clean air duct 207, wherein one end of the feeding duct 202 is connected to a crushing mechanism, and the crushing mechanism is finely crushed by two hammers. Machine 103 is connected in parallel with a claw crusher 101, and the other end of the feeding air pipe 202 is connected with three koji powder buffer bins 402 through three three-way switching valves 203 respectively, and each koji powder buffer bin 402 The upper end of the upper end is connected with the dust air duct 206, and a cyclone dust collector 301 is arranged at the lower end of each koji powder buffer storehouse 402, and koji powder enters the corresponding curved point 401 through the koji powder buffer storehouse 402 through the cyclone dust collector 301. The dust suction air duct 205 is connected in parallel with the dust air duct 206 to form a closed pipeline after being connected with the crushing mechanism. The inlet of the bag filter 302 is connected with the dust air duct 206 from each koji powder buffer storehouse 402, and the outlet It is connected with the clean air duct 207, and the clean air duct 207 communicates with the atmosphere through the induced draft fan 204, and the three-way switch valve 203 is also connected with a comprehensive controller. The feeding air pipe 202 is provided with two discharge and air supply valves 201 , and each discharge and air supply valve 201 is respectively located below the corresponding hammer mill 103 . An automatic limiter 104 is provided below the feed inlet of the claw crusher 101 .

In this embodiment, the induced draft fan 204 is used as the power source for the delivery of rice flour, and the pipeline negative pressure is generated by the induced draft fan 204, and the koji powder entering the feeding air duct 202 is made to run from the high-pressure area to the low-pressure area through the discharge air supply valve 201, and at the same time It can enter the koji powder buffer warehouse and the mother koji metering warehouse. The specific running direction is controlled by three three-way switching valves 203. The three three-way switching valves 203 are connected to the integrated controller. The integrated controller controls the three-way switching valve 203 through system programming. The opening and closing commands are issued, so that the koji powder runs in the specified direction and enters the three specified 401 with the koji. The integrated controller is the control center of the koji system, it can control the start and stop of all equipment motors, and manage the start and stop sequence of each equipment through program design. On the operation interface, the operation of koji powder is intuitively represented by the flow of lines, the operation of each motor is displayed in the mode of fan rotation, and the voltage and current values are displayed in the form of data in a timely manner. In this way, through the operation interface, each system can be monitored in real time. The health of the device. If the equipment fails and the current and voltage values exceed the normal setting range, it will indicate that the fan of the equipment stops running, and an alarm will be given with a red light flashing, the system will automatically stop running, and the maintenance personnel can eliminate the fault in time.

In this technical solution, the koji powder running in the pipeline is driven by the wind force provided by the induced draft fan 204. The feeding speed of the feeding port, the crushing speed of the crushing mechanism, and the flow rate of the koji powder in the pipeline are matched with the power of the induced draft fan 204. The operation makes the temperature of each link of the system rise, and the work is unstable, and the control system will automatically stop. An automatic limiter 104 is set under the feed port, and the opening and closing action of the automatic limiter 104 controls the size of the feed port. When the bent block is fed quickly, the feed port becomes smaller; The mouth becomes larger, so that the speed and capacity of the curved block entering the system are effectively controlled, and the problem of system temperature rise is effectively solved.

In this technical solution, the koji powder is separated from the feeding air duct 202 by the cyclone dust collector 301. The function of the cyclone dust collector 301 is to separate the koji powder from the air, and the separated koji powder enters the designated curved point 401. The separated air enters the dust air duct 206, and the dust air duct 206 is connected to the inlet of the bag filter 302. A small amount of koji powder contained in the dust air duct 206 is filtered by the bag filter 302 and deposited in the bag filter. The bottom of 302 enters the feeding air pipe 202 through the discharge valve 201 to start the secondary cycle. The outlet of the bag filter 302 is connected to the clean air duct 207. The air filtered by the bag filter 302 has less impurities and high cleanliness, which meets the national emptying standard, and is discharged into the atmosphere through the clean air duct 207. Since there is a vacuum cover installed at the discharge port and the outlet of each koji powder buffer bin, the discharge port and the outlet of each koji powder buffer bin here are also the air inlets of the system, which can suck a small amount of koji powder in the surrounding air into the dust suction wind The pipe 205, the dust suction air pipe 205 and the dust air pipe 206 are connected in parallel, and the dust is removed by the bag filter 302. The koji powder is conveyed from the crushing mechanism to each koji point 401 through negative pressure, abandoning the traditional mechanical transportation method. This technical solution has a smart structure, easy maintenance, and is economical and environmentally friendly.

This embodiment is a two-stage crushing mode, the first stage of crushing is a primary crusher (that is, the claw crusher 101 in Figure 1), and the second stage is two fine crushers (that is, the hammer crusher in Figure 1). chip fine crusher 103), two hammer chip fine crushers 103 are connected in parallel and connected in series with a claw crusher 101 to form a crushing mechanism, and the number of curved points 401 is 3 or more. Among them, the crushing value of the jaw crusher 101 is primary crushing, and the crushing value of the hammer crusher 103 is the final crushing. A powder iron remover 102 is provided at the outlet of the claw crusher 101 , and the outlet of the powder iron remover 102 is connected in series with a hammer mill 103 . The powder iron remover 102 includes a iron remover and a feeder, the iron remover is connected in series with the feeder, the feeder has a plurality of outlets, and each outlet is connected in series with a hammer mill 103; In this embodiment, one claw crusher 101 is connected with two powder iron removers 102 , and each powder iron remover 102 is connected with one hammer mill 103 respectively. In this technical solution, since the induced draft fan 204 is set to communicate with the corresponding branch pipes, the internal air pressure of the pulverizing mechanism, the wind conveying system and the koji powder collection can be lower than the ambient air pressure. This enables the equipment to break koji blocks and transport koji powder under full negative pressure. During installation, the vertical elevation of the outlet of the claw crusher 101 and the hammer mill 103 is lower than the feed inlet of the koji powder collection device, and the koji powder collection device here includes a cyclone dust collector 301 and a bag filter 302.

Embodiment 2: As shown in Figure 2, a kind of koji powder equipment according to the present invention includes a wind power conveying system and a crushing mechanism connected to the wind power conveying system, a koji powder buffer storehouse 402 and a bag filter 302, the wind power conveying The system includes an induced draft fan 204, a feeding air duct 202, a dust suction duct 205, a dust air duct 206 and a clean air duct 207, wherein one end of the feeding duct 202 is connected to a crushing mechanism, and the crushing mechanism is finely crushed by a hammer Crusher 103 is connected in series with a claw crusher 101, and the other end of the feeding air pipe 202 is communicated with two koji powder buffer bins 402 through two three-way switching valves 203 respectively, and the upper end of each koji powder buffer bin 402 is Linked to each other with the dust air duct 206, a cyclone dust collector 301 is arranged at the lower end of each koji powder buffer bin 402, and the koji powder enters the corresponding use point 401 through the koji powder buffer bin 402 through the cyclone dust collector 301. The dust suction air duct 205 is connected in parallel with the dust air duct 206 to form a closed pipeline after being connected with the crushing mechanism. The inlet of the bag filter 302 is connected with the dust air duct 206 from each koji powder buffer storehouse 402, and the outlet It is connected with the clean air duct 207, and the clean air duct 207 communicates with the atmosphere through the induced draft fan 204, and the three-way switch valve 203 is also connected with a comprehensive controller. The feeding air pipe 202 is provided with a material discharge air supply valve 201 , and the material discharge air supply valve 201 is located below the hammer mill 103 . An automatic limiter 104 is provided below the feed inlet of the claw crusher 101 .

In this embodiment, the induced draft fan 204 is used as the power source for the delivery of rice flour, and the pipeline negative pressure is generated by the induced draft fan 204, and the koji powder entering the feeding air duct 202 is made to run from the high-pressure area to the low-pressure area through the discharge air supply valve 201, and at the same time It can enter the koji powder buffer warehouse and the mother koji metering warehouse. The specific running direction is controlled by two three-way switching valves 203. The two three-way switching valves 203 are connected to the integrated controller. The integrated controller controls the three-way switching valve 203 through system programming. The opening and closing commands are issued, so that the koji powder runs in the specified direction and enters the two specified 401 with the curved point. The integrated controller is the control center of the koji system, it can control the start and stop of all equipment motors, and manage the start and stop sequence of each equipment through program design. On the operation interface, the operation of koji powder is intuitively represented by the flow of lines, the operation of each motor is displayed in the mode of fan rotation, and the voltage and current values are displayed in the form of data in a timely manner. In this way, through the operation interface, each system can be monitored in real time. The health of the device. If the equipment fails and the current and voltage values exceed the normal setting range, it will indicate that the fan of the equipment stops running, and an alarm will be given with a red light flashing, the system will automatically stop running, and the maintenance personnel can eliminate the fault in time.

In this technical solution, the koji powder running in the pipeline is driven by the wind force provided by the induced draft fan 204. The feeding speed of the feeding port, the crushing speed of the crushing mechanism, and the flow rate of the koji powder in the pipeline are matched with the power of the induced draft fan 204. The operation makes the temperature of each link of the system rise, and the work is unstable, and the control system will automatically stop. An automatic limiter 104 is set under the feed port, and the opening and closing action of the automatic limiter 104 controls the size of the feed port. When the bent block is fed quickly, the feed port becomes smaller; The mouth becomes larger, so that the speed and capacity of the curved block entering the system are effectively controlled, and the problem of system temperature rise is effectively solved.

In this technical solution, the koji powder is separated from the feeding air duct 202 by the cyclone dust collector 301. The function of the cyclone dust collector 301 is to separate the koji powder from the air, and the separated koji powder enters the designated curved point 401. The separated air enters the dust air duct 206, and the dust air duct 206 is connected to the inlet of the bag filter 302. A small amount of koji powder contained in the dust air duct 206 is filtered by the bag filter 302 and deposited in the bag filter. The bottom of 302 enters the feeding air pipe 202 through the discharge valve 201 to start the secondary cycle. The outlet of the bag filter 302 is connected to the clean air duct 207. The air filtered by the bag filter 302 has less impurities and high cleanliness, which meets the national emptying standard, and is discharged into the atmosphere through the clean air duct 207. Since there is a vacuum cover installed at the discharge port and the outlet of each koji powder buffer bin, the discharge port and the outlet of each koji powder buffer bin here are also the air inlets of the system, which can suck a small amount of koji powder in the surrounding air into the dust suction wind The pipe 205, the dust suction air pipe 205 and the dust air pipe 206 are connected in parallel, and the dust is removed by the bag filter 302. The koji powder is conveyed from the crushing mechanism to each koji point 401 through negative pressure, abandoning the traditional mechanical transportation method. This technical solution has a smart structure, easy maintenance, and is economical and environmentally friendly.

This embodiment is a two-stage crushing mode. The first stage is a primary crusher (that is, the claw crusher 101 in FIG. 2 ), and the second stage is a fine crusher (that is, the hammer crusher in FIG. 2 ). chip shredder 103). The difference between this embodiment and the first embodiment is that only one hammer crusher 103 is directly connected in series with the claw crusher 101 to form a crushing mechanism in the second stage, and there are two or more inflection points 401 . The bent pieces are crushed by the claw crusher 101 and then sent to the hammer crusher 103 for crushing. The outlet of the claw crusher 101 is provided with a powder iron remover 102, and the outlet of the powder iron remover 102 is connected in series with a hammer mill 103; 204 communicates with corresponding branch pipes, so that the internal air pressure of the crushing mechanism, the wind conveying system and the koji powder collection can be lower than the ambient air pressure. This enables the equipment to break koji blocks and transport koji powder under full negative pressure. During installation, the vertical elevation of the outlet of the claw crusher 101 and the hammer mill 103 is lower than the feed inlet of the koji powder collection device, and the koji powder collection device here includes a cyclone dust collector 301 and a bag filter 302.

Embodiment 3: As shown in Figure 3, a kind of koji powder equipment according to the present invention includes a wind power conveying system and a crushing mechanism connected to the wind power conveying system, a koji powder buffer storehouse 402 and a bag filter 302, the wind power conveying The system includes an induced draft fan 204, a feeding air duct 202, a dust suction duct 205, a dust air duct 206 and a clean air duct 207, wherein one end of the feeding duct 202 is connected to a crushing mechanism, and the crushing mechanism consists of a claw crushing Machine 101 is connected in series with two hammer mills 103, and the other end of the feeding air pipe 202 communicates with three koji powder buffer bins 402 through three three-way switching valves 203 respectively, and the upper end of each koji powder buffer bin 402 Linked to each other with the dust air duct 206, a cyclone dust collector 301 is arranged at the lower end of each koji powder buffer bin 402, and the koji powder enters the corresponding use point 401 through the koji powder buffer bin 402 through the cyclone dust collector 301. The dust suction air duct 205 is connected in parallel with the dust air duct 206 to form a closed pipeline after being connected with the crushing mechanism. The inlet of the bag filter 302 is connected with the dust air duct 206 from each koji powder buffer storehouse 402, and the outlet It is connected with the clean air duct 207, and the clean air duct 207 communicates with the atmosphere through the induced draft fan 204, and the three-way switch valve 203 is also connected with a comprehensive controller. The feeding air pipe 202 is provided with a material discharge and air supply valve 201 , and the material discharge air supply valve 201 is located below a hammer mill 103 closest to the feed air pipe 202 . An automatic limiter 104 is provided below the feed inlet of the claw crusher 101 .

In this embodiment, the induced draft fan 204 is used as the power source for the delivery of rice flour, and the pipeline negative pressure is generated by the induced draft fan 204, and the koji powder entering the feeding air duct 202 is made to run from the high-pressure area to the low-pressure area through the discharge air supply valve 201, and at the same time It can enter the koji powder buffer warehouse and the mother koji metering warehouse. The specific running direction is controlled by three three-way switching valves 203. The three three-way switching valves 203 are connected to the integrated controller. The integrated controller controls the three-way switching valve 203 through system programming. The opening and closing commands are issued, so that the koji powder runs in the specified direction and enters the two specified 401 with the curved point. The integrated controller is the control center of the koji system, it can control the start and stop of all equipment motors, and manage the start and stop sequence of each equipment through program design. On the operation interface, the operation of koji powder is intuitively represented by the flow of lines, the operation of each motor is displayed in the mode of fan rotation, and the voltage and current values are displayed in the form of data in a timely manner. In this way, through the operation interface, each system can be monitored in real time. The health of the device. If the equipment fails and the current and voltage values exceed the normal setting range, it will indicate that the fan of the equipment stops running, and an alarm will be given with a red light flashing, the system will automatically stop running, and the maintenance personnel can eliminate the fault in time.

In this technical solution, the koji powder running in the pipeline is driven by the wind force provided by the induced draft fan 204. The feeding speed of the feeding port, the crushing speed of the crushing mechanism, and the flow rate of the koji powder in the pipeline are matched with the power of the induced draft fan 204. The operation makes the temperature of each link of the system rise, and the work is unstable, and the control system will automatically stop. An automatic limiter 104 is set under the feed port, and the opening and closing action of the automatic limiter 104 controls the size of the feed port. When the bent block is fed quickly, the feed port becomes smaller; The mouth becomes larger, so that the speed and capacity of the curved block entering the system are effectively controlled, and the problem of system temperature rise is effectively solved.

In this technical solution, the koji powder is separated from the feeding air duct 202 by the cyclone dust collector 301. The function of the cyclone dust collector 301 is to separate the koji powder from the air, and the separated koji powder enters the designated curved point 401. The separated air enters the dust air duct 206, and the dust air duct 206 is connected to the inlet of the bag filter 302. A small amount of koji powder contained in the dust air duct 206 is filtered by the bag filter 302 and deposited in the bag filter. The bottom of 302 enters the feeding air pipe 202 through the discharge valve 201 to start the secondary cycle. The outlet of the bag filter 302 is connected to the clean air duct 207. The air filtered by the bag filter 302 has less impurities and high cleanliness, which meets the national emptying standard, and is discharged into the atmosphere through the clean air duct 207. Since there is a vacuum cover installed at the discharge port and the outlet of each koji powder buffer bin, the discharge port and the outlet of each koji powder buffer bin here are also the air inlets of the system, which can suck a small amount of koji powder in the surrounding air into the dust suction wind The pipe 205, the dust suction air pipe 205 and the dust air pipe 206 are connected in parallel, and the dust is removed by the bag filter 302. The koji powder is conveyed from the crushing mechanism to each koji point 401 through negative pressure, abandoning the traditional mechanical transportation method. This technical solution has a smart structure, easy maintenance, and is economical and environmentally friendly.

This embodiment is a three-stage crushing mode. The first stage is a primary crusher (that is, the claw crusher 101 in FIG. 3 ), and the second stage is an intermediate crusher (that is, the hammer crusher in FIG. 3 ). Chip crusher 105), the third stage is a fine crusher (being the hammer blade fine crusher 103 among Fig. 3). The difference between this embodiment and Embodiment 1 and Embodiment 2 is that a claw crusher 101, a hammer crusher 105 and a hammer fine crusher 103 are used in series to form a crushing mechanism, and the inflection point 401 is 3 or more. The bent pieces are crushed by the claw crusher 101 and then sent to the middle hammer crusher 105 and the fine hammer crusher 103 for crushing. A powder iron remover 102 is provided at the discharge port of the claw crusher 101, and the discharge port of the powder iron remover 102 is connected with the hammer crusher 105, and the discharge port of the hammer crusher 105 is connected with the hammer crusher 105. The hammer fine crusher 103 is connected, and the hammer fine crusher 103 is connected with the feeding air pipe 202 through the discharge air supply valve 201; The internal air pressure of the system and koji powder collection is lower than the ambient air pressure. This enables the equipment to break koji blocks and transport koji powder under full negative pressure. During installation, the vertical elevation of the outlet of the claw crusher 101 and the hammer mill 103 is lower than the feed inlet of the koji powder collection device, and the koji powder collection device here includes a cyclone dust collector 301 and a bag filter 302.

In the above-mentioned embodiment, the claw crusher 101 is driven by dual motors, and the claw plate with a special structure is used to tear and shear the curved block, so as to achieve better crushing.

As shown in Fig. 1, Fig. 2 and Fig. 3, the present invention provides a method for preparing koji powder with the above-mentioned koji powder equipment. Induced fan 204 and the wind conveying system that is communicated with induced fan 204 realize, and its specific method step is as follows:

a. Crushing of koji pieces: firstly put the koji pieces into the claw crusher 101 for first-stage crushing, and then crush the massive koji pieces into granular koji powder through the second stage, wherein the second stage is broken into a hammer The chip fine crusher 103 is connected in series with one claw crusher 101, two hammer crushers 103 are connected in parallel and then connected in series with one claw crusher 101, or one hammer crusher 103 is connected in series with one hammer crusher 105 Afterwards, with a claw crusher 101;

b. Pneumatic transportation of koji powder: after the massive koji pieces described in step a are crushed into granular koji powder through the second stage, the koji powder enters the sealed feeding air duct 202 through the discharge air supply valve 201, and operates three Through the switching valve 203 to control the flow direction of the koji powder, under the guidance of the wind, the koji powder enters the cyclone dust collector 301 and the bag dust collector 302 along the feeding air pipe 202 for collection;

c, koji powder collection: after the koji powder as described in step b enters the cyclone dust collector 301 and the bag filter 302 under the guidance of the wind force, the koji powder is separated from the gas by the cyclone dust collector 301, and the koji powder directly enters the storage device , the dust-laden gas enters the bag filter 302 to collect the remaining dust, and enters the koji powder wind conveying pipeline for circulation and separation, and the clean gas is discharged to the atmosphere through the clean air duct 207;

d. Environmental dust removal: The pipeline of the koji powder wind conveying system is extended to each dust raising point, and the dust is captured through the dust collection hood and collected and utilized.

In the above steps, the three-way switching valve 203 is controlled by the integrated controller, and the integrated controller issues an opening and closing command to the three-way switching valve 203, so that the koji powder runs in a specified direction and enters the specified koji point 401. .

The full negative pressure mentioned in the above method means that when the whole equipment is working, the internal air pressure of the crushing mechanism, wind conveying device, and koji powder collecting device is slightly lower than the ambient air pressure, so that the dust cannot be leaked out.

Claims (6)

1. a powder song equipment, including wind model system and is connected with wind model system Disintegrating mechanism, bent powder buffering chamber (402) and sack cleaner (302), it is characterised in that: Described wind model system includes air-introduced machine (204), feeding airduct (202), dust suction airduct (205), dust and gas airduct (206) and clean gas airduct (207), wherein feeding airduct (202) One end is connected with disintegrating mechanism, and the other end is by three-way switch valve (203) and bent powder buffering chamber (402) connection, the upper end of described bent powder buffering chamber (402) and dust and gas airduct (206) phase Even, described dust suction airduct (205) is in parallel with dust and gas airduct (206), described sack cleaner (302) entrance is connected with dust and gas airduct (206), and outlet is with clean gas airduct (207) even Connecing, described clean gas airduct (207) is cut through air-introduced machine (204) and atmosphere, described threeway Change and be also associated with comprehensive controller on valve (203)；It is provided with on described feeding airduct (202) Discharge aeration valve (201)；Described bent powder buffering chamber (402) lower end is provided with cyclone dust extractor (301)；Described disintegrating mechanism includes first order disintegrating mechanism and second level disintegrating mechanism, wherein First order disintegrating mechanism is a claw disintegrating machine (101), and second level disintegrating mechanism is and claw A hammer leaf fine crusher (103) that disintegrating machine (101) is connected and claw disintegrating machine (101) Series connection two hammer leaf fine crushers (103) in parallel or be and claw disintegrating machine (101) The hammer leaf intermediate crusher (105) being sequentially connected in series and a hammer leaf fine crusher (103)；Described Automatic limiting measuring device (104) it is provided with below the charging aperture of claw disintegrating machine (101).

A kind of powder song equipment the most according to claim 1, it is characterised in that: described pawl The broken value of formula disintegrating machine (101) is primary breakup, the broken value of hammer leaf fine crusher (103) Crushing for final stage, knee-piece inputs hammer leaf fine crusher (103) after claw disintegrating machine (101) is broken again Broken.

A kind of powder song equipment the most according to claim 1, it is characterised in that: described pawl The discharging opening of formula disintegrating machine (101) is provided with powder iron remover (102), and powder iron remover (102) Discharging opening connect with hammer leaf fine crusher (103).

A kind of powder song equipment the most according to claim 1, it is characterised in that: described powder The discharging opening vertical elevation of broken mechanism is less than the charging aperture absolute altitude of sack cleaner (302).

5. the powder song equipment preparation song that a kind uses as described in Claims 1-4 any one The method of powder, it is characterised in that: the method is utilized under full negative pressure state broken knee-piece and defeated Sending bent powder, negative pressure passes through air-introduced machine (204) and the wind model connected with air-introduced machine (204) System realizes, and its concrete grammar step is as follows:

A, knee-piece are broken: first put into by knee-piece in claw disintegrating machine (101) and carry out the first order and break Broken, then bulk knee-piece is broken into through the second level graininess song powder, wherein the second level is broken Broken for the first order hammer leaf fine crusher (103) that in broken, claw disintegrating machine (101) is connected, Two hammer leaf fine crushers in parallel that in broken with the first order, claw disintegrating machine (101) is connected (103) or for a hammer leaf intermediate crusher (105) being sequentially connected in series with claw disintegrating machine (101) With a hammer leaf fine crusher (103)；

B, bent powder wind model: the block knee-piece as described in step a is broken broken through the second level Being broken into graininess Qu Fenhou, bent powder enters the feeding wind sealed by discharge aeration valve (201) Pipe (202), and operate three-way switch valve (203) the control bent powder flow direction, in the guiding of wind-force Under make bent powder enter cyclone dust extractor (301) and sack cleaner along feeding airduct (202) (302) it is collected；

C, bent powder are collected: the bent powder as described in step b enters whirlwind under the guiding of wind-force and removes When dirt device (301) and sack cleaner (302), first by cyclone dust extractor (301) by song Powder separates with gas, and bent powder is directly entered storage device, and dusty gas enters back into sack cleaner (302) collect remaining dust, and enter bent powder wind model pipeline multi-cycle separation collection, And gas discharges air through clean gas airduct (207) only；

D, environmental dust removal: bent powder wind model pipeline expands to each airborne dust point, passes through dust suction Cover, captures dust, and Collection utilization.

A kind of method preparing bent powder the most according to claim 5, it is characterised in that: Described three-way switch valve (203) is controlled by comprehensive controller, and comprehensive controller is to three Direction changeover valve (203) assigns open and close instruction, so that bent powder is run by the direction specified, What entrance was specified uses bent point (401).