CN110841545A

CN110841545A - Continuous dry powder pulping and stirring device

Info

Publication number: CN110841545A
Application number: CN201911183202.3A
Authority: CN
Inventors: 张德强; 陈伟雄; 刘明红
Original assignee: Hunan Jiaxun Huaxin Material Co Ltd
Current assignee: Hunan Jiaxun Huaxin Material Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-02-28

Abstract

The invention discloses a continuous dry powder pulping and stirring device which comprises a base, wherein the upper end of the base is connected with a supporting plate through a turntable, the upper end of the supporting plate is provided with stirring barrels in a ring-shaped array along the axis of the turntable, the upper end of each stirring barrel is provided with an upper cover, the upper cover is provided with a feeding port, a water inlet and a stirring rod, and a bearing is arranged between each stirring rod and the upper cover; the stirring device is characterized in that a top plate is arranged above the stirring barrel, a material storage barrel, a water pipe and a driving device used for driving the stirring rod to rotate are arranged on the top plate, and a valve is arranged at an outlet at the lower end of the material storage barrel. The invention aims to provide a continuous dry powder pulping and stirring device which can improve pulping efficiency and avoid excessive raw material accumulation.

Description

Continuous dry powder pulping and stirring device

Technical Field

The invention relates to the field of dry powder pulping, in particular to a continuous dry powder pulping and stirring device.

Background

In the preparation process of the molding sand for precision casting, talc and other raw materials are required to be crushed to prepare slurry, and then spherical granules are prepared by utilizing spray granulation equipment; the production process comprises the steps of grinding by a ball mill, collecting by a dust remover and the like, and when pulping, raw material particles collected by the dust remover enter a stirring tank through a conveyor, in the raw material adding process, water is added into the stirring tank according to the water content of the required slurry, and after the addition of the raw material, the water and the like is finished, a stirring device starts to stir to prepare the slurry; the materials can not be accumulated in the dust remover in the process, so that the normal work of the dust remover is not influenced, and the phenomena that the support legs can not bear the weight of the materials and bend due to too much materials in the dust remover can be caused, but a certain time is needed for stirring, so that the storage of raw materials and the pulping process need to be reasonably arranged to improve the pulping efficiency and avoid the excessive accumulation of the raw materials.

Disclosure of Invention

The invention aims to solve the problems and provide a continuous dry powder pulping and stirring device which can improve pulping efficiency and avoid excessive raw material accumulation.

In order to realize the purpose, the invention adopts the technical scheme that: a continuous dry powder pulping and stirring device is characterized in that a plurality of stirring barrels are arranged on a supporting plate, the stirring barrels and the supporting plate rotate around a vertical axis under the driving of a rotary disc so as to exchange the relative positions of the stirring barrels, a material storage barrel, a water pipe and a driving device, a material feeding port, a water inlet and a stirring rod are arranged on an upper cover of each stirring barrel, the stirring rod rotates under the driving of the driving device, the driving device and the stirring rod can be separated so as to stir objects in the stirring barrels, the material feeding port and the water inlet are respectively matched with the material storage barrel and the water pipe, and raw materials and water coming out of the lower ends of the material storage barrel and the water pipe enter the stirring barrels from the material feeding port and the water inlet respectively; the material storage barrel and the water pipe are provided with valves for controlling material transmission.

Furthermore, in order to avoid scattering of raw material dust into the air when raw material is thrown, the storage barrel is telescopic, the lower end of the storage barrel is driven by the first pushing device to descend, when the feed opening is positioned right below the lower end of the storage barrel, the outlet at the lower end of the storage barrel can be inserted into the stirring barrel, when the storage barrel is separated from the stirring barrel, the cover plate at the edge of the feed opening resets under the action of the torsion spring and the spring hinge so as to seal the feed opening, the cover plate is hinged at the edge of the lower end of the feed opening, and when the storage barrel is inserted, the cover plate can turn downwards; in order to realize the extension of the material storage barrel, the material storage barrel comprises an inner barrel and an outer barrel which are fixed on a top plate, the inner barrel and the outer barrel are nested together and are both of structures with the upper ends and the lower ends open, and a first pushing device used for driving the outer barrel to lift is arranged on the top plate.

Furthermore, in order to prevent the material from being clamped at the joint of the inner barrel and the outer barrel, the outer barrel is sleeved on the inner barrel, and the lower end of the outer barrel is arranged to be conical and matched with the feeding port.

Furthermore, a circle of baffle plates are arranged on the outer wall of the outer barrel along the axis of the outer barrel, and the baffle plates can block the feed opening.

Further, when guaranteeing toward the water injection in the agitator, water can not splash outside the agitator, the water pipe is including setting up the fixed pipe on the roof, fixed pipe lower extreme passes through the hose and is connected with the activity pipe, and the activity pipe can push up the closing plate in order to stretch into the agitator under the second thrust unit drive of roof, the closing plate passes through torsional spring, spring hinge etc. and articulates the lower extreme border department at the water inlet.

Further, in order to realize being connected with dismantling of puddler drive arrangement, drive arrangement is including setting up the third thrust unit on the roof, third thrust unit's piston rod is connected with the mounting panel of roof below, the mounting panel lower extreme passes through bearing frame and drive shaft connection, the drive shaft lower extreme is provided with the card key seat with puddler upper end keyway looks adaptation, and the card key seat can insert in the keyway and block along with the decline of mounting panel and die to can drive the puddler when making the drive shaft rotatory, after card key seat and keyway separation, can not hinder the rotation of backup pad yet, the drive shaft is connected with the driving motor transmission on the mounting panel.

Furthermore, in order to ensure that the clamping key seat and the key groove can be clamped, a containing groove is formed in the outer side wall of the clamping key seat, a spring is arranged on the bottom surface of the containing groove, the spring is connected with the clamping key, and the outer side face of the clamping key extends out of the outer wall of the clamping key seat; and grooves matched with the clamping keys are formed in the side walls of the key grooves.

Furthermore, the lower end face of the outer side of the clamping key is provided with an inclined surface, so that the clamping key seat can be conveniently inserted into the key groove.

Further, in order to realize automatic water injection and material feeding, a water flowmeter is arranged on the water pipe and used for detecting water flow in the water pipe, a weighing sensor is arranged in the stirring barrel and used for detecting the weight of materials in the stirring barrel, and the water flowmeter and the weighing sensor obtain data and send the data to a control system of the background.

The invention has the beneficial effects that: opening the material storage barrel and the water pipe which are positioned above the first stirring barrel, so that raw materials in the material storage barrel can enter the stirring barrel from the feeding port, water enters the stirring barrel from the water inlet, and after the raw materials and the water are injected, closing the outlets on the material storage barrel and the water pipe; then the carousel drives the backup pad rotation for an agitator rotates to drive arrangement below, and No. two agitators are then rotatory to storage bucket and water pipe below, and when the rotatory stirring of puddler in an agitator, No. two agitators are located reinforced state, thereby avoid the raw material granule to exist in the dust remover, simultaneously can continuous production in order to improve slurrying efficiency.

1. The material storage barrel comprises an inner barrel fixed on the top plate and an outer barrel movably sleeved on the inner barrel, and the lower end of the outer barrel can push the cover plate open to extend into the stirring barrel under the driving of the first pushing device.

2. The water pipe is including fixing the fixed pipe on the roof, fixed pipe lower extreme opening part passes through the hose and is connected with the movable tube, and the movable tube is under second thrust unit's drive, and its lower extreme can push open the closing plate in order to stretch into the agitator for add the water in-process, water can not fly apart everywhere.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the structure of the mixing tank.

Fig. 3 is a schematic structural diagram of the driving device.

Fig. 4 is a schematic view of a card key seat structure.

The text labels in the figures are represented as: 1. a base; 2. a turntable; 3. a support plate; 4. a stirring barrel; 5. an upper cover; 6. a feeding port; 7. a water inlet; 8. a stirring rod; 9. a top plate; 10. a storage barrel; 11. a water pipe; 12. a valve; 13. a cover plate; 14. an inner barrel; 15. an outer tub; 16. a first urging device; 17. a baffle plate; 18. a sealing plate; 19. a fixed tube; 20. a hose; 21. a movable tube; 22. a second pushing device; 23. a third urging means; 24. mounting a plate; 25. a drive shaft; 26. a keyway; 27. a card key base; 28. a drive motor; 29. a receiving groove; 30. a spring; 31. a card key; 32. a groove; 33. and (4) a column.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 4, the specific structure of the present invention is: a continuous dry powder pulping and stirring device comprises a base 1, wherein the upper end of the base 1 is connected with a supporting plate 3 through a turntable 2, the rotary table 2 can adopt electric drive, hydraulic drive and the like, in particular can adopt electric rotary table, hydraulic rotary table and the like, the upper end of the supporting plate 3 is provided with at least two stirring barrels 4, the lower end of each stirring barrel 4 is provided with a discharge pipe for discharging slurry, the mixing barrels 4 are arranged in an annular array by taking the axis of the rotary table 2 as an axis, two mixing barrels 4 are adopted in the embodiment, namely a first mixing barrel and a second mixing barrel, an upper cover 5 is arranged at an opening at the upper end of the stirring barrel 4, a feeding port 6, a water inlet 7 and a stirring rod 8 are arranged on the upper cover 5 at intervals, the stirring rod 8 is superposed with the axis of the stirring barrel 4, the stirring rod 8 extends towards the lower end of the stirring barrel 4, and a bearing is arranged between the stirring rod 8 and the upper cover 5; the upper end of the base 1 is connected with a top plate 9 through an upright column 33, the top plate 9 is arranged above the stirring barrel 4, a material storage barrel 10, a water pipe 11 and a driving device for driving the stirring rod 8 to rotate are arranged on the top plate 9, the upper end and the lower end of the material storage barrel 10 are opened, processed raw materials enter the material storage barrel 10 from the upper end of the material storage barrel 10, and a valve 12 at the outlet of the lower end of the material storage barrel 10 is closed in a normal state; the water pipe 11 is connected with a water source, and a water valve is arranged on the water pipe 11; the driving device can be separated from or connected with the stirring rod.

Preferably, the edge of the opening at the lower end of the feeding port 6 is connected with a cover plate 13 through a spring hinge, the cover plate 13 seals the feeding port 6 in a normal state, but the cover plate 13 can be turned downwards under the action of downward thrust; the material storage barrel 10 comprises an inner barrel 14 and an outer barrel 15, the upper end and the lower end of the inner barrel are open, the inner barrel 14 is fixed on a top plate, the outer barrel 15 is movably arranged below the inner barrel 14, a first pushing device 16 is arranged on the top plate 9, a piston rod of the first pushing device 16 is connected with the outer wall of the outer barrel 15 through a connecting rod, and the first pushing device 16 can adopt an electric push rod, an air cylinder and the like.

Preferably, the outer barrel 15 is nested in the lower part of the outer wall of the inner barrel 14, the lower end of the outer barrel 15 is tapered with a large upper end and a small lower end, so that the lower end of the outer barrel 15 can be inserted into the feeding opening 6, and the valve 12 is arranged at the lower opening of the outer barrel 15.

Preferably, a circle of baffle 17 is arranged on the outer wall of the outer barrel 15 along the axis of the outer barrel, the outer diameter of the baffle 17 is larger than the inner diameter of the feeding port 6, and after the lower end of the outer barrel 15 is inserted into the feeding port 6, the baffle 17 seals the gap between the feeding port 6 and the outer barrel 15, so as to achieve the effects of dust prevention and limiting.

Preferably, the opening edge of the lower end of the water inlet 7 is connected with a sealing plate 18 through a spring hinge, the sealing plate 18 seals the water inlet 7 in a normal state, but under the action of downward thrust, the sealing plate 18 can turn over downwards; water pipe 11 is including setting up fixed pipe 19 on roof 9, fixed 19 lower extremes of managing pass through hose 20 and activity pipe 21 and be connected, hose 20 has elasticity and its length will be greater than the distance between fixed pipe 19 and the water inlet 7, be provided with the second thrust unit 22 that is used for driving activity pipe 21 to go up and down on roof 9, second thrust unit 22's piston rod passes through the connecting rod and is connected with activity pipe 21, second thrust unit 22 can adopt electric putter, cylinder etc.

Preferably, drive arrangement is including setting up third thrust unit 23 on the roof, third thrust unit 23 can adopt electric putter, cylinder etc, third thrust unit 23's piston rod is connected with mounting panel 24 of roof 9 below, mounting panel 24 lower extreme is connected with drive shaft 25 through the bearing frame, the vertical setting of drive shaft 25, drive shaft 25 lower extreme is provided with the card key seat 27 with the keyway 26 looks adaptation of puddler 8 upper end, card key seat 27 can set up the spline, be provided with driving motor 28 on the mounting panel 24, driving motor 28's output shaft passes through the transmission such as gear, belt in order to drive the puddler 8 rotatory.

Preferably, the outer side wall of the key seat 27 is provided with a receiving groove 29, the receiving groove 29 is vertically arranged, the bottom surface of the receiving groove 29 is provided with a spring 30, the spring 30 is connected with a key 31, when the spring 30 has no external force, the outer side surface of the key 31 extends out of the outer wall of the key seat 27, but the inner side of the key 31 is still located in the receiving groove 29, so as to prevent the key 31 from being unable to return to the receiving groove 29 when the key 31 is subjected to an upward force; the side wall of the key groove 26 is provided with a groove 32 matched with the clamp key 31, and the inner diameter of the key groove 26 is smaller than the outer diameter of a virtual circle formed by the clamp key 31 in a normal state of the spring 30.

Preferably, the lower end surface of the outer side of the snap key 31 is provided with a slope, so that when the snap key seat 27 is inserted into the key slot 26, the snap key 31 can move towards the inner side of the snap key seat 27.

Preferably, a water flow meter is arranged on the water pipe 11, a weighing sensor is arranged in the stirring barrel 4, the water flow meter is connected with the weighing sensor and a control system of the background, and the control system can adopt a PLC control system.

Example 1: the produced raw materials enter the material storage barrel 10 from the upper end of the inner barrel 14; when the slurry is prepared, the lower end of the outer barrel 15 is pushed by the first pushing device 16 to be inserted into the first stirring barrel from the feeding port 6 of the first stirring barrel; meanwhile, the movable pipe 21 is pushed by the second pushing device 22 to be inserted into the first stirring barrel from the water inlet 7 of the first stirring barrel, then the valve 12 and the water valve are opened, so that the raw materials and the water are injected into the stirring barrel 4, after the raw materials and the water are injected, the valve 12 and the water valve are closed, and the outer barrel 15 and the movable pipe 21 ascend to return to the upper part of the first stirring barrel; then the turntable 2 works to exchange the positions of the first mixing tank and the second mixing tank, so that the first mixing tank is positioned below the driving device, the second mixing tank is positioned below the outer tank 15 and the movable pipe 21, and after the positions of the two mixing tanks are exchanged, the outer tank 15 and the movable pipe 21 repeat the process of feeding materials to the first mixing tank; meanwhile, the third pushing device 23 drives the mounting plate 24 to descend, so that the clamping key seat 27 is inserted into the key groove 26, when the clamping key seat 27 is matched with the key groove 26, if the clamping key 31 is not aligned with the groove, because the outer diameter of the clamping key 31 is larger than that of the key groove 26, the inner wall of the key groove 26 can push against the clamping key 31 to enable the spring 30 to contract so that the clamping key 31 retracts into the accommodating groove 29, then the driving motor 28 drives the driving shaft 25 to rotate, the clamping key seat 27 synchronously moves while the driving shaft 25 rotates, when the clamping key 31 moves to the position of the groove 32, under the action of the spring 30, the clamping key 31 pops out to be inserted into the groove 32, so that the stirring rod 8 can rotate along with the clamping key seat 27, the stirring rod 8 can stir materials in the first stirring barrel, and when the mounting plate 24 ascends, the clamping key 31 can be separated from the opening position at the upper end of the groove.

Example 2: on the premise that other steps are the same as those of the embodiment 1, in order to automatically control the water adding amount and the raw material adding amount, a water flow meter is arranged on the water pipe 11, a weighing sensor is arranged in the stirring barrel 4, and the valve 12 is electrically controlled; measuring the water flow in the water pipe 11 and the weight of the materials in the stirring barrel 4 by using a weighing sensor and a water flow meter, uploading data measured by the weighing sensor and the water flow meter into a control system, and analyzing the data by the control system, wherein the data obtained by the weighing sensor is subtracted from the data obtained by the water flow meter to obtain the addition amount of the raw materials; according to the water content of the required slurry, the required water quantity and the required raw material quantity are input in advance, when the material entering the stirring barrel 4 meets the specified requirements, the background control system obtains data from the weighing sensor and the water flow meter, and controls the valve 12 and the water pump in the water source to be closed so as to stop feeding.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. A continuous dry powder pulping and stirring device comprises a base (1) and is characterized in that the upper end of the base (1) is connected with a supporting plate (3) through a turntable (2), stirring barrels (4) are arranged at the upper end of the supporting plate (3) along the axis of the turntable (2) in an annular array mode, an upper cover (5) is arranged at the upper end of each stirring barrel (4), a feeding port (6), a water inlet (7) and a stirring rod (8) are arranged on each upper cover (5), and a bearing is arranged between each stirring rod (8) and each upper cover (5); a top plate (9) is arranged above the stirring barrel (4), a material storage barrel (10), a water pipe (11) and a driving device for driving the stirring rod (8) to rotate are arranged on the top plate (9), and a valve (12) is arranged at an outlet at the lower end of the material storage barrel (10).

2. A continuous dry powder pulping stirring device according to claim 1, wherein the edge of the material feeding port (6) is hinged with a cover plate (13) which is turned downwards, the material storage barrel (10) comprises an inner barrel (14) fixed on the top plate and an outer barrel (15) capable of being inserted into the material feeding port (6), and the top plate (9) is provided with a first pushing device (16) for driving the outer barrel (15) to ascend and descend.

3. A continuous dry powder pulping stirring device according to claim 2, wherein the outer barrel (15) is nested in the lower part of the outer wall of the inner barrel (14), and the lower end of the outer barrel (15) is provided with a taper shape matched with the feeding port.

4. A continuous dry powder slurrying stirring device according to claim 2, wherein the outer barrel (15) is provided with a ring of baffles (17) along its axis on the outer wall.

5. The continuous dry powder pulping stirring device of claim 1, wherein a sealing plate (18) is hinged to the lower end edge of the water inlet (7), the water pipe (11) comprises a fixed pipe (19) arranged on the top plate (9), the lower end of the fixed pipe (19) is connected with the movable pipe (21) through a hose (20), and a second pushing device (22) for driving the movable pipe (21) to ascend and descend is arranged on the top plate (9).

6. The continuous dry powder pulping stirring device of claim 1, wherein the driving device comprises a third pushing device (23) arranged on the top plate, a piston rod of the third pushing device (23) is connected with a mounting plate (24) below the top plate (9), the lower end of the mounting plate (24) is connected with a driving shaft (25) through a bearing seat, the lower end of the driving shaft (25) is provided with a clamping key seat (27) matched with a key groove (26) at the upper end of the stirring rod (8), and the driving shaft (25) is in transmission connection with a driving motor (28) on the mounting plate (24).

7. A continuous dry powder pulping and stirring device according to claim 6, wherein the side wall of the key seat (27) is provided with a receiving groove (29), the bottom surface of the receiving groove (29) is provided with a spring (30), the spring (30) is connected with a key (31), and the outer side surface of the key (31) extends out of the outer wall of the key seat (27); and a groove (32) matched with the clamping key (31) is formed in the side wall of the key groove (26).

8. A continuous dry powder slurrying stirring device according to claim 7, wherein the outer lower end surface of the catch (31) is provided with a slope.

9. A continuous dry powder pulping stirring device according to claim 1, wherein a water flow meter is arranged on the water pipe (11), a weighing sensor is arranged in the stirring barrel (4), and the water flow meter and the weighing sensor are connected with a background control system.