CN218463907U - Dry-mixing conveying system for milk powder - Google Patents

Abstract

The application provides a dry-mixing conveying system for milk powder, which comprises a conveying device, a pouring device, a mixing device, a dense-phase conveying device and a screening device which are sequentially connected. The material pouring device comprises a pouring machine and a hopper. The material mixing device comprises a milk powder metering tank, an additive metering tank and a mixing machine, wherein the milk powder metering tank and the additive metering tank are respectively communicated with the mixing machine, and the milk powder metering tank is also connected with a vacuum pump. The dense-phase conveying device comprises a sending tank, a Roots blower and a mixed powder bin which are sequentially communicated. The screening device comprises a vibrating screen and a product bin. The mixer is a horizontal double-shaft paddle mixer, a plurality of groups of paddles with different included angles with the vertical direction are connected to the stirring shaft through transmission rods, each group of paddles with the same included angle are linearly arranged along the stirring shaft, the included angle between the plane where the paddles are located and the vertical direction is 30-90 degrees, and the transmission rods are arranged at intervals. This application makes milk powder and additive mix more evenly, has improved the transport efficiency of milk powder simultaneously.

Description

Dry-mixing conveying system for milk powder

Technical Field

The application relates to the technical field of solid material conveying, in particular to a dry-mixing conveying system for milk powder.

Background

The milk powder is prepared from fresh milk, goat milk or camel milk by freezing or heating to remove almost all water in milk, drying to obtain powder, and concocting for eating. In order to make the edible taste of the milk powder more fragrant and sweet and enrich the nutrient elements of the milk powder, a proper amount of additives such as vitamins, minerals, probiotics and the like are usually added in the working procedures before or after the drying of the milk powder.

In the adding process, part of the additives can be mixed with the milk powder only in a dry environment, so that the additives are prevented from deteriorating under the condition of containing water and affecting the quality of the milk powder. In the prior art, milk powder and additives are usually added into a stirrer for stirring and mixing, but the existing stirrer adopts a horizontal double-shaft paddle type mixer, the mixer is horizontally arranged, the bottom area is large, and the problem of uneven mixing exists.

SUMMERY OF THE UTILITY MODEL

The present application provides a dry mixing and conveying system for powdered milk to solve the above mentioned problems mentioned in the background art.

The application provides a dry-mixed conveyor system of milk powder includes: the device comprises a conveying device, a pouring device, a mixing device, a dense phase conveying device and a screening device which are connected in sequence.

The conveying device comprises an inclined plane conveying belt and a plane conveying belt, the dumping device comprises a dumping machine and a hopper, and the dumping machine is connected with the hopper through a fixing plate.

The material mixing device comprises a milk powder metering tank, an additive metering tank and a mixing machine, wherein the milk powder metering tank and the additive metering tank are respectively communicated with the mixing machine, and the milk powder metering tank is also connected with a vacuum pump.

The dense-phase conveying device comprises a sending tank, a Roots blower and a mixed powder bin which are sequentially communicated, and the sending tank is communicated with the mixer through a powder conveying pipeline.

The screening device comprises a vibrating screen and a product bin, and a feed inlet of the vibrating screen is communicated with the mixed powder bin.

The Roots blower is also connected with an air filter.

The mixer is a horizontal double-shaft paddle mixer, a plurality of groups of paddles with different included angles in the vertical direction are connected to the stirring shaft through a transmission rod, the paddles with the same included angle in each group are linearly arranged along the stirring shaft, the included angle between the plane where the paddles are located and the vertical direction is 30-90 degrees, the length of the transmission rod is arranged at intervals, and the stirring shaft is further connected with a motor.

Optionally, the discharge hole of the hopper is provided with a regulating valve.

Optionally, the mixer comprises a mixing chamber and a discharging chamber which are communicated with each other, the lower part of the mixing chamber is movably connected with a partition plate, and the discharging chamber is of a conical structure.

Optionally, the separating plate is connected with the inner wall of the mixing chamber through a hinge along one side of the stirring shaft direction, and the opening degree of the separating plate is adjusted through a supporting plate movably connected with the inner wall of the stirring shaft.

Optionally, the bottom of the mixer is provided with a weigher.

Optionally, the pouring machine is provided with an extension plate.

Optionally, the vibrating screen is further connected with a first recovery tank.

Optionally, a metal detector is further arranged between the vibrating screen and the product bin, and the metal detector is further connected with a second recovery tank.

Optionally, the dry-mixing and conveying system for milk powder is further provided with a controller, and the controller is connected with the regulating valve, the milk powder metering tank, the additive metering tank, the vacuum pump, the motor, the supporting plate, the Roots blower and the vibrating screen respectively.

The application provides a dry-mixed conveyor system of milk powder has realized the mixed transport of milk powder and additive, compares in prior art, has following beneficial effect:

(1) The milk powder is conveyed to the hopper through the conveying device and the material pouring device, the milk powder in the hopper is conveyed to the milk powder metering tank through the vacuum pump, and the milk powder in the milk powder metering tank and the additive in the additive metering tank are added into the mixer to be mixed. The mixer is a horizontal double-shaft paddle type mixer, a plurality of groups of paddles with different included angles in the vertical direction are connected to the stirring shaft through a transmission rod, the plane where the paddles are located and the included angle in the vertical direction are 30-90 degrees, the contact area between the paddles and the mixed powder can be increased through the arrangement, the mixed powder moves along with the rotation of the stirring shaft, and the mixing efficiency is further improved.

(2) The mixed powder obtained by mixing is conveyed to the screening device through the dense-phase conveying device for screening, the dense-phase conveying enables the mixed powder to be conveyed in a conveying pipeline at a lower speed, in a sand dune state and in a fluidized state, the collision between milk powder particles and a pipe wall caused by continuous powder conveying is avoided, the milk powder particles and the additive particles are damaged, the conveying is enabled to be more efficient by the arrangement, and the property of conveying the milk powder and the additive can be guaranteed not to be damaged.

(3) The mixing machine comprises mixing chamber and unloading room that communicate each other, and the unloading room is the toper structure, and has the division board in the lower part swing joint of mixing chamber, prevents to mix the powder and falls at the stirring in-process, leads to mixing inhomogeneous, and then influences product quality. The blanking chamber with the conical structure is more favorable for falling of the powder, and the conveying efficiency of the mixed powder is improved.

(4) The mixing and conveying of the milk powder and the additive are realized through the controller, the manual investment is reduced, and the operation of the dry mixing conveying system is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a dry mix delivery system for powdered milk provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a top view of a mixing machine according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a left side of a mixer according to another embodiment of the present application;

FIG. 4 is a schematic diagram of a dry mix delivery system for powdered milk provided in another embodiment of the present application;

fig. 5 is a schematic connection diagram of a controller according to an embodiment of the present application.

Description of reference numerals:

110: a bevel conveyor belt;

120: a planar conveyor belt;

210: a dumping machine;

2101: an extension plate;

220: a hopper;

2201: adjusting a valve;

230: a fixing plate;

310: a milk powder metering tank;

3101: a vacuum pump;

320: an additive metering tank;

330: a mixer;

3301: a motor;

3302: a stirring shaft;

3303: a transmission rod;

331: a mixing chamber;

332: a blanking chamber;

334: a separator plate;

335: a support plate;

336: a weighing device;

410: a sending tank;

420: a Roots blower;

430: a mixed powder bin;

510: vibrating screen;

5101: a first recovery tank:

520: a product bin;

530: a metal detector;

5301: a second recovery tank;

6: and a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of a dry-mixing and conveying system for powdered milk provided by an embodiment of the present application, and fig. 2 is a schematic structural diagram of a mixer provided by an embodiment of the present application, as shown in fig. 1 and fig. 2, the present application provides a dry-mixing and conveying system for powdered milk, comprising: the device comprises a conveying device, a pouring device, a mixing device, a dense phase conveying device and a screening device which are connected in sequence.

The conveyor 1 comprises a bevel conveyor 110 and a plane conveyor 120, the pouring device comprises a pouring machine 210 and a hopper 220, and the pouring machine 210 and the hopper 220 are connected through a fixing plate 230.

The mixing device comprises a milk powder metering tank 310, an additive metering tank 320 and a mixer 330, wherein the milk powder metering tank 310 and the additive metering tank 320 are respectively communicated with the mixer 330, and the milk powder metering tank 310 is also connected with a vacuum pump 3101.

The dense phase conveying device comprises a sending tank 410, a Roots blower 420 and a mixed powder bin 430 which are sequentially communicated, wherein the sending tank 410 is communicated with the mixer 330 through a powder conveying pipeline.

The screening device comprises a vibrating screen 510 and a product bin 520, and a feed inlet of the vibrating screen 510 is communicated with the mixed powder bin 430.

The roots blower 420 is also connected with an air filter 4201.

The mixer 330 is a horizontal double-shaft paddle mixer, a plurality of groups of paddles 3304 with different included angles in the vertical direction are connected to the mixing shaft 3302 through a transmission rod 3303, the paddles 3304 with the same included angle in each group are linearly arranged along the mixing shaft 3302, the included angle between the plane where the paddles 3304 are located and the vertical direction is 30-90 degrees, the transmission rod 3303 is arranged at intervals in length, and the mixing shaft 3302 is further connected with a motor 3301.

Specifically, milk powder in bags is conveyed to the pouring device through the conveying device, is conveyed to the pouring machine 210 through the inclined conveying belt 110 and the plane conveying belt 120, the inclination angle of the pouring machine 210 can be adjusted, the milk powder in bags is poured to the hopper 220 to be stored, and the hopper 220 and the pouring machine 210 are fixed through the fixing plate 230 to prevent the hopper 220 from shaking. The vacuum pump 3101 connected to the milk powder measuring tank 310 is turned on to deliver the milk powder in the hopper 220 to the milk powder measuring tank 310 by pumping negative pressure for mixing in the next process. The vacuum pump 3101 is turned off, the powdered milk in the powdered milk measuring tank 310 and the additive in the additive measuring tank 320 are delivered to the mixer 330 according to the weight ratio, and the motor 3301 is turned on to stir the powdered milk and the additive, and the obtained mixed powder falls to the delivery tank 410. The additive is a dry solid additive, such as solid probiotic bacteria. The mixed powder is transported from the delivery tank 410 through a dense phase transport device to a screening device for screening. When the dense-phase conveying device operates, the Roots blower 420 provides power to convey mixed powder to the mixed powder bin 430 through the powder conveying pipeline, dense-phase conveying enables the mixed powder to be conveyed in the conveying pipeline at a lower speed in a sand dune state and in a fluidized state, collision between milk powder particles and the pipe wall caused by continuous powder conveying is avoided, damage to the milk powder particles and additive particles is avoided, conveying is more efficient due to the arrangement, and the property of conveying the milk powder and the additive can be guaranteed not to be damaged. The Roots blower 420 is also connected with an air filter 4201, so that air entering the conveying pipeline is clean and does not cause milk powder and additives to deteriorate. After the mixing is finished, the mixed powder in the mixed powder bin 430 is screened according to the particle size through the vibrating screen 510 to obtain a product, and the product with qualified particles is conveyed to the product bin 520 to be stored, so that the next step of packaging and subpackaging is facilitated. The mixer 330 is a horizontal double-shaft paddle mixer, and the transmission rods 3303 of the mixer 330 are arranged at intervals, so that the milk powder and the additives in different spaces can be stirred conveniently, and the mixing is more uniform. Be provided with the paddle 3304 that the multiunit is different with vertical direction contained angle on the (mixing) shaft 3302, the paddle 3304 of every same contained angle of group is along the (mixing) shaft 3302 sharp setting, and the contained angle of paddle place plane and vertical direction is 30-90, sets up like this and can increase the area of contact of paddle 3304 and mixed powder to make mixed powder along with the rotation of (mixing) shaft 3302 and move, further improve mixing efficiency. Motor 3301 in the mixer 330, (mixing) shaft 3302, transfer line 3303 and paddle 3304 are a set of agitator, and this agitator is provided with two sets ofly, and the rotation direction of (mixing) shaft 3302 in two sets of agitators is opposite, sets up like this and is favorable to milk powder and additive to mix more evenly. The application is not only suitable for the mixed transportation of milk powder and dry solid additive, but also can be used for the mixing of other dry solids.

Through above-mentioned scheme, accomplished the mixture and the transport of milk powder and additive, defeated to the hopper with milk powder through conveyer and pouring device, defeated to the milk powder metering tank through the vacuum pump with the milk powder in the hopper, added the additive in milk powder metering tank and the additive metering tank and mix in the blender. The mixing machine is a horizontal double-shaft paddle type mixing machine, a plurality of groups of paddles with different included angles in the vertical direction are connected to the stirring shaft through a transmission rod, the included angle between the plane where the paddles are located and the vertical direction is 30-90 degrees, the contact area between the paddles and the mixed powder can be increased by setting the mixing shaft, the mixed powder moves along with the rotation of the stirring shaft, and the mixing efficiency is further improved. Simultaneously, send the mixed powder that will mix obtained to screening plant through dense phase conveyor and sieve, dense phase is carried and is made mixed powder in the pipeline with lower speed, dune state, fluidization state transport, has avoided the collision of milk powder granule and the pipe wall that continuous defeated powder caused, and causes destruction to milk powder and additive granule, sets up like this and makes the transport more high-efficient, can also guarantee not destroyed at the nature of carrying milk powder and additive.

Fig. 3 is a schematic diagram of a left side structure of a mixer according to another embodiment of the present disclosure, and optionally, the mixer 330 is composed of a mixing chamber 331 and a discharging chamber 332 which are communicated with each other, a partition plate 334 is movably connected to a lower portion of the mixing chamber 331, and the discharging chamber 332 has a conical structure.

Specifically, the powdered milk and the additive are mixed in the mixing chamber 331, and the resulting mixed powder falls to the delivery tank 410 through the discharging chamber 332. In the mixing process, the division board 334 is arranged at the lower part of the mixing chamber 331, so that the mixed powder is prevented from falling, the mixing proportion of the milk powder and the additive is changed, the mixing is uneven, the product quality is further influenced, after the mixing is finished, the division board 334 is moved away, the mixed powder can be smoothly discharged, and the blockage or the powder is prevented from being left in the mixing chamber 331 and the discharging chamber 332. The blanking chamber 332 with the conical structure is more beneficial to falling of powder, and the conveying efficiency of mixed powder is improved.

Optionally, one side of the isolation plate 334 along the direction of the stirring shaft 3302 is connected to the inner wall of the mixing chamber 331 by a hinge, and the opening degree of the isolation plate 334 is adjusted by a support plate 335 movably connected to the inner wall of the mixing chamber 331.

Specifically, one side of division board 334 is through hinge and mixing chamber 331 wall connection, when in mixing process, when needing division board 334 to keep apart mixing chamber 331 and unloading room 332, support division board 334 through backup pad 335, make division board 334 horizontal direction, when mixing, when needing to transfer mixed powder to send jar 410, the angle of control backup pad 335, make the one end that division board 334 keeps away from the hinge hug closely in the lateral wall of unloading room 332, become 90 with the horizontal direction, after accomplishing the unloading, the backup pad 335 is controlled again and is supported division board 334, make division board 334 become the horizontal direction, a mixture for follow-up feeding, so circulation. Compared with the prior art, the batch mixing method can avoid the problem of uneven mixing and can also avoid the mutual influence of different batches of products.

Fig. 4 is a schematic structural diagram of a dry mixing and delivering system for powdered milk provided by another embodiment of the present application, and as shown in fig. 4, optionally, a weigher 336 is provided at the bottom of the mixing machine 330.

Specifically, the weighing device 336 can detect the weight of the mixed powder in the mixing machine 330 in real time, thereby facilitating the control of the milk powder in the milk powder metering tank 310 and the additive metering tank 320 to add the powder into the mixing machine 330.

Optionally, the dumping machine 210 is provided with an extension plate 2101.

Specifically, the extension plate 2101 can ensure that the powder of the pouring machine 210 falls into the hopper 220, thereby avoiding scattering of the milk powder and the additives and avoiding waste.

Optionally, a first recovery tank 5101 is also connected to the shaker 510.

Specifically, when the vibrating screen 510 is in operation, the mixed powder that can pass through the screen holes is transported to the product bin 520, and the mixed powder that cannot pass through is transported to the first recycling tank 5101 for storage, so that subsequent further stirring is facilitated, and the particle size of the mixed powder is reduced.

Optionally, a metal detector 530 is further disposed between the vibrating screen 510 and the product bin 520, and the metal detector 530 is further connected to a second recovery tank 5301.

Specifically, the metal content of the sieved mixed powder is detected by a metal detector 530, the mixed powder with the metal content not exceeding the standard is conveyed to a product bin 520, and the mixed powder with the metal content exceeding the standard is conveyed to a second recovery tank 5301, so that the product quality is improved.

Optionally, the discharge port of the hopper 220 is provided with a regulating valve 2201.

Specifically, the opening of the regulating valve 2201 is controlled at any time, so that the amount of the milk powder entering the milk powder metering tank 310 can be controlled, the system is convenient to operate, and the controllability is high.

Fig. 5 is a connection schematic diagram of the controller provided in an embodiment of the present application, and as shown in fig. 5, optionally, the dry milk powder mixing and conveying system is further provided with a controller 6, and the controller 6 is respectively connected to the regulating valve 2201, the dry milk powder metering tank 310, the additive metering tank 320, the vacuum pump 3101, the motor 3301, the supporting plate 335, the roots blower 420, and the vibrating screen 510.

Specifically, the pouring machine 210 pours the milk powder into the hopper 220, the controller 6 starts the vacuum pump 3101 connected to the milk powder measuring tank 310, the milk powder in the hopper 220 is conveyed into the milk powder measuring tank 310 by negative pressure pumping, when the weight detected by the milk powder measuring tank 310 reaches a first preset value of the milk powder, a weight signal is transmitted to the controller 6, and the controller 6 controls to close the regulating valve 2201 and the vacuum pump 3101 in sequence to stop conveying the milk powder into the milk powder measuring tank 310. Then the controller 6 starts the milk powder metering tank 310 and the additive metering tank 320, milk powder and additives are added into the mixer 330, the motor 3301 is started simultaneously, the milk powder and the additives are stirred and mixed, and during mixing, the weighing device 336 detects the weight of mixed powder inside the mixer 330 and transmits a weight signal to the controller 6, when the controller 6 receives that the weight signal transmitted by the weighing device 336 is equal to a first preset value of the mixer, the milk powder metering tank 310 and the additive metering tank 320 are closed, the supporting plate 335 is started, and the mixed powder in the mixer 330 is discharged to the sending tank 410. The weight of the mixer 330 is continuously reduced during the feeding process, and when the controller 6 receives the weight signal from the weighing device 336 and equals to the second preset value of the mixer, the supporting plate 335 is closed, the vacuum pump 3101 and the regulating valve 2201 are opened, and the powdered milk is added into the powdered milk metering tank 310. And simultaneously starting the roots blower 420 and the vibrating screen 510, conveying the mixed powder to the vibrating screen 510 through the roots blower 420, and conveying the mixed powder passing through the screen holes of the vibrating screen 510 to the product bin 520.

The technical solution of the present application is illustrated in detail by the following specific examples.

In the dry-mixing and conveying system for milk powder in the embodiment, the operation flow during specific work is as follows:

milk power in bags is defeated to pouring the material device through conveyer, passes through inclined plane conveyer belt 110 earlier, and rethread plane conveyer belt 120 carries to empting machine 210, empties the adjustable inclination of machine 210, pours milk power in bags to hopper 220 and saves, and fixed plate 230 fixes hopper 220, prevents that hopper 220 from rocking. The controller 6 starts a vacuum pump 3101 connected with the milk powder metering tank 310, the milk powder in the hopper 220 is conveyed into the milk powder metering tank 310 through negative pressure pumping, when the weight detected by the milk powder metering tank 310 reaches a first preset value of the milk powder, a weight signal is transmitted to the controller 6, the controller 6 controls the regulating valve 2201 and the vacuum pump 3101 to be closed in sequence, and the milk powder is stopped being conveyed into the milk powder metering tank 310. Then the controller 6 starts the milk powder metering tank 310 and the additive metering tank 320, milk powder and additives are added into the mixer 330, the additives are solid probiotics, the motor 3301 is started simultaneously, the milk powder and the additives are stirred and mixed, and when the milk powder and the additives are mixed, the weighing device 336 detects the weight of mixed powder inside the mixer 330 and transmits a weight signal to the controller 6, when the controller 6 receives that the weight signal transmitted by the weighing device 336 is equal to a first preset value of the mixer, the milk powder metering tank 310 and the additive metering tank 320 are closed, the supporting plate 335 is opened, and the mixed powder in the mixer 330 is discharged to the sending tank 410. The weight of the mixer 330 is continuously reduced during the discharging process, and when the controller 6 receives the weight signal from the weighing device 336 and equals to the second preset value of the mixer, the support plate 335 is closed, the vacuum pump 3101 and the regulating valve 2201 are opened, and the powdered milk is added into the powdered milk measuring tank 310. The roots blower 420 and the vibrating screen 510 are simultaneously opened, the mixed powder is conveyed to the vibrating screen 510 through the roots blower 420, the mixed powder passing through the screen holes of the vibrating screen 510 is conveyed to the product bin 520, and the mixed powder not passing through the screen holes of the vibrating screen 510 is conveyed to the first recovery tank 5101. The mixed powder passing through the sieve holes of the vibrating screen 510 is subjected to metal content detection through the metal detector 530, the mixed powder with the metal content not exceeding the standard is conveyed to the product bin 520 to be stored, the next step of packaging and subpackaging is facilitated, and the mixed powder with the metal content exceeding the standard is conveyed to the second recovery tank 5301.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A dry mix milk powder delivery system, comprising: the conveying device, the pouring device, the mixing device, the dense-phase conveying device and the screening device are sequentially connected;

the conveying device comprises a bevel conveyor belt (110) and a plane conveyor belt (120), the pouring device comprises a pouring machine (210) and a hopper (220), and the pouring machine (210) and the hopper (220) are connected through a fixing plate (230);

the mixing device comprises a milk powder metering tank (310), an additive metering tank (320) and a mixer (330), the milk powder metering tank (310) and the additive metering tank (320) are respectively communicated with the mixer (330), and the milk powder metering tank (310) is also connected with a vacuum pump (3101);

the dense-phase conveying device comprises a sending tank (410), a Roots blower (420) and a mixed powder bin (430) which are sequentially communicated, wherein the sending tank (410) is communicated with the mixer (330) through a powder conveying pipeline;

the screening device comprises a vibrating screen (510) and a product bin (520), and a feed inlet of the vibrating screen (510) is communicated with the mixed powder bin (430);

the Roots blower (420) is also connected with an air filter (4201);

mixer (330) mixes machine for horizontal biax paddle formula, be connected with paddle (3304) that multiunit and vertical direction contained angle are different through transfer line (3303) on (mixing) shaft (3302) of mixer (330), paddle (3304) of every group same contained angle are followed (mixing) shaft (3302) straight line sets up, paddle place plane is 30-90 with the contained angle of vertical direction, transfer line (3303) length interval sets up, mixing shaft (3302) still is connected with motor (3301).

2. The dry-mixed milk powder conveying system as claimed in claim 1, wherein the mixer (330) is composed of a mixing chamber (331) and a blanking chamber (332) which are communicated with each other, the lower part of the mixing chamber (331) is movably connected with a partition plate (334), and the blanking chamber (332) is of a conical structure.

3. The dry milk powder mixing and conveying system as claimed in claim 2, wherein one side of the isolation plate (334) along the direction of the stirring shaft (3302) is connected with the inner wall of the mixing chamber (331) through a hinge, and the opening degree of the isolation plate (334) is adjusted through a support plate (335) movably connected with the inner wall of the stirring shaft (3302).

4. The dry powder mixing delivery system according to claim 3, wherein the bottom of the mixer (330) is provided with a weigher (336).

5. The dry powdered milk mix delivery system according to claim 1, wherein the pouring machine (210) is provided with an extension plate (2101).

6. The dry mix delivery system of claim 1, wherein a first recovery tank (5101) is further connected to the shaker (510).

7. The dry powdered milk mixing and conveying system according to claim 4, wherein the discharge port of the hopper (220) is provided with a regulating valve (2201).

8. The dry powdered milk mixing and conveying system according to claim 7, wherein a metal detector (530) is further arranged between the vibrating screen (510) and the product bin (520), and a second recovery tank (5301) is further connected to the metal detector (530).

9. The dry milk powder mixing and conveying system according to claim 8, further comprising a controller (6), wherein the controller (6) is connected to the regulating valve (2201), the milk powder metering tank (310), the additive metering tank (320), the vacuum pump (3101), the motor (3301), the supporting plate (335), the roots blower (420) and the vibrating screen (510).

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