CN113503746A

CN113503746A - Dry separation and purification device of metallurgical smelting equipment

Info

Publication number: CN113503746A
Application number: CN202111030527.5A
Authority: CN
Inventors: 周浩然; 贾祥义; 李涛涛
Original assignee: Jiangsu Zhongli Hechuang Precision Machinery Technology Co ltd
Current assignee: Jiangsu Zhongli Hechuang Precision Machinery Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-10-15

Abstract

The invention discloses a dry separation and purification device of metallurgical smelting equipment, which comprises: the device comprises a smelting furnace, a supporting shell, a first purification mechanism, a second purification mechanism, a third purification mechanism and a fourth purification mechanism; the smelting furnace is provided with a first conveying pipe for discharging gas generated during the working of the smelting furnace; a first purification mechanism, a second purification mechanism and a third purification mechanism are respectively arranged in the supporting shell and used for specifically purifying different components in the gas; and the fourth purification mechanism is arranged on one side of the support shell and is used for further purifying the gas discharged by the smelting furnace. The invention can effectively treat the gas generated in the mineral smelting process in a targeted way by arranging the corresponding mechanism of the gas purification device of the existing smelting equipment, and can completely remove the harmful components in the gas one by one, thereby ensuring that the discharged gas does not cause harm to human bodies and pollution to the environment any more, and reducing unnecessary troubles for users.

Description

Dry separation and purification device of metallurgical smelting equipment

Technical Field

The invention belongs to the technical field of metallurgical smelting equipment, and particularly relates to a dry separation and purification device of the metallurgical smelting equipment.

Background

Metallurgy refers to the process and technology of extracting metals or metal compounds from minerals and then using various processing methods to make the metals into metallic materials with a certain property. Wherein the metallurgical equipment comprises: material conveying equipment, metallurgical heat transfer equipment, mixing and stirring equipment, separating equipment, evaporative crystallization equipment, smelting equipment, purifying equipment and the like.

During the smelting process of minerals, a large amount of gas is generated, the gas may contain mineral slag, carbon monoxide, carbon dioxide, hydrogen, oxygen, sulfur dioxide and the like, and part of the gas causes certain damage to human bodies and certain pollution to the environment, so that the generated gas needs to be effectively purified.

However, in the prior art, the targeted treatment of components in the gas is lacked, most of the components are subjected to mixed centralized treatment, the effect is poor, harmful components in the mixed gas cannot be completely removed, the treated gas still cannot reach the standard, the gas is still harmful to the human body and pollutes the environment, and troubles are brought to users.

Therefore, in order to solve the above technical problems, it is necessary to provide a dry separation purification device for a metallurgical smelting plant.

Disclosure of Invention

The invention aims to provide a dry separation and purification device of metallurgical smelting equipment, which is used for solving the problem that harmful gas components generated in the existing metallurgical mineral smelting process cannot be removed.

In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:

a dry separation and purification device of a metallurgical smelting device comprises: the device comprises a smelting furnace, a supporting shell, a first purification mechanism, a second purification mechanism, a third purification mechanism and a fourth purification mechanism;

the smelting furnace is provided with a first conveying pipe for discharging gas generated during the working of the smelting furnace;

the supporting shell is arranged on one side of the smelting furnace and is used for arranging a multiple gas purification device, a first purification mechanism, a second purification mechanism and a third purification mechanism are respectively arranged in the supporting shell and are used for specifically purifying different components in gas, and the supporting shell is communicated with one end, away from the smelting furnace, of the first conveying pipe, so that the gas in the smelting furnace can enter the supporting shell;

the fourth purification mechanism is arranged on one side of the support shell and used for further purifying gas discharged by the smelting furnace.

Furthermore, a hot gas pipe is sleeved on the smelting furnace and used for transferring heat into the supporting shell, and a plurality of fixed connecting rods are fixedly connected between the hot gas pipe and the smelting furnace and used for supporting the hot gas pipe and preventing the hot gas pipe from shaking or falling;

the hot air pipe is connected with a pair of heat circulation conveying pipes, so that gas for transferring heat can flow circularly, one end of each heat circulation conveying pipe, which is close to the support shell, is connected with a connecting cylinder, and a micro air pump is arranged in each connecting cylinder, so that the micro air pump can drive the gas to flow after being started.

Furthermore, the first purification mechanism comprises a filter screen for blocking dust and ore slag so that gas discharged from the smelting furnace can be primarily purified and filtered, a pair of fixed support rods are arranged below the filter screen and used for supporting the fixed bearing and increasing the stability of the fixed bearing, and the pair of fixed support rods are fixedly connected with the support shell;

one end of each fixed supporting rod, which is far away from the supporting shell, is connected with a fixed bearing for supporting the transmission rod, so that the transmission rod cannot incline, and the transmission rod can rotate freely, and the connecting rope drives the beating ball to rotate.

Furthermore, a transmission rod is inserted in the fixed bearing and used for supporting the driven bevel gear, the connecting rope and the beating ball can be driven to rotate through the transmission rod when the driven bevel gear rotates, and the driven bevel gear is installed at one end of the transmission rod and can be driven to rotate when the driving bevel gear rotates, so that the transmission rod is driven to rotate;

the one end that the driven helical gear was kept away from to the transfer line is connected with the connection rope for the pulling strikes the ball, makes to strike the ball and can not drop, and drives to strike the ball and rotate, the one end fixedly connected with that the transfer line was kept away from to the connection rope strikes the ball, is used for striking the filter screen, avoids the filter screen to take place the jam.

Furthermore, the second purification mechanism comprises a pair of fixed support plates for supporting the fixed cotton so that the fixed cotton does not fall off, and the fixed cotton is mounted on each of the pair of fixed support plates for storing microorganisms so that the microorganisms can purify flowing gas;

and a pair of transmission worms are arranged between the fixed supporting plate and the supporting shell and used for supporting and driving the rotating blades to rotate, and a plurality of rotating blades which are uniformly distributed are arranged on the transmission worms and used for driving gas to flow so that the passing gas can be better contacted with microorganisms on the fixed cotton.

Furthermore, a partition plate is arranged on one side, away from the filter screen, of the fixed support plate and used for supporting the first motor and blocking gas, and a pair of first motors are arranged on the partition plate and used for driving the first transmission shaft to rotate;

it is a pair of all be connected with first transmission shaft on the first motor, first transmission shaft runs through filter screen, a pair of fixed stay board and division board setting, makes first transmission shaft can drive transmission turbine and rotate to can not receive the influence.

Further, a transmission worm wheel is installed at one end, close to the transmission worm, of the first transmission shaft, and is used for driving the transmission worm to rotate, the transmission worm wheel is meshed with the transmission worm, transmission is facilitated, and a driving bevel gear meshed with the driven bevel gear is installed at one end, far away from the first motor, of the first transmission shaft, and is used for driving the driven bevel gear to rotate.

Furthermore, the third purification mechanism comprises a pair of support frames for supporting the sliding support rods and preventing the sliding support rods from falling off, the pair of support frames are fixedly connected with the support shell, so that the pair of support frames cannot move or fall off, and the sliding support rods are connected in the support frames in a sliding manner and used for supporting the plurality of vertical support plates;

the one side that the support frame was kept away from to the slip bracing piece is equipped with a plurality of evenly distributed's vertical support board for support and fixed a plurality of copper oxide, and is a pair of be equipped with a plurality of evenly distributed's copper oxide between the vertical support board, be used for absorbing partial composition among the flowing gas.

Further, fourth purification mechanism is including depositing the case for deposit sodium hydroxide solution, deposit and be connected with the second conveyer pipe between case and the support shell for conveying gas, it is equipped with the second motor on the case to deposit for it is rotatory to drive the second transmission shaft.

Furthermore, be connected with the second transmission shaft on the second motor for drive stirring vane rotates, the second transmission shaft is inserted and is located and deposit the incasement, the stirring vane is installed to one of second transmission shaft position in depositing the incasement for stirring solution improves purifying effect.

Compared with the prior art, the invention has the following advantages:

the invention can effectively treat the gas generated in the mineral smelting process in a targeted way by arranging the corresponding mechanism of the gas purification device of the existing smelting equipment, and can completely remove the harmful components in the gas one by one, thereby ensuring that the discharged gas does not cause harm to human bodies and pollution to the environment any more, and reducing unnecessary troubles for users.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a dry separation purification apparatus of a metallurgical melting plant in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a dry separation purification apparatus of a metallurgical melting plant in an embodiment of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 2 at B;

FIG. 5 is a schematic view of the structure of FIG. 2 at C;

FIG. 6 is a schematic view of the structure of FIG. 2 at D;

FIG. 7 is a schematic view of the structure at E in FIG. 2;

FIG. 8 is a schematic view of the structure at F in FIG. 2;

FIG. 9 is a partial schematic structural view of a second purge mechanism according to an embodiment of the present invention;

fig. 10 is a partial structural schematic view of a third purge mechanism according to an embodiment of the present invention.

In the figure: 1. smelting furnace, 101, a first conveying pipe, 102, a hot gas pipe, 103, a fixed connecting rod, 104, a heat circulating conveying pipe, 105, a connecting cylinder, 2, a supporting shell, 3, a first purifying mechanism, 301, a filter screen, 302, a fixed supporting rod, 303, a fixed bearing, 304, a driving rod, 305, a driven bevel gear, 306, a connecting rope, 307, a knocking ball, 4, a second purifying mechanism, 401, a fixed supporting plate, 402, fixed cotton, 403, a driving worm, 404, a rotating blade, 405, a partition plate, 406, a first motor, 407, a first transmission shaft, 408, a driving turbine, 409, a driving bevel gear, 5, a third purifying mechanism, 501, a supporting frame, 502, a sliding supporting rod, 503, a vertical supporting plate, 504, copper oxide, 6, a fourth purifying mechanism, 601, a storage box, 602, a second conveying pipe, 603, a second motor, 604, a second transmission shaft, 605. A stirring blade.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

The invention discloses a dry separation and purification device of metallurgical smelting equipment, which is shown in figures 1-10 and comprises: smelting furnace 1, support housing 2, first purification mechanism 3, second purification mechanism 4, third purification mechanism 5 and fourth purification mechanism 6.

Referring to fig. 1-3, a first conveying pipe 101 is provided on the melting furnace 1 for discharging gas generated during the operation of the melting furnace 1, a hot gas pipe 102 is sleeved on the melting furnace 1 for transferring heat to the support housing 2, and a plurality of fixing connecting rods 103 are fixedly connected between the hot gas pipe 102 and the melting furnace 1 for supporting the hot gas pipe 102 and preventing the hot gas pipe 102 from shaking or falling.

Wherein, be connected with a pair of heat circulation conveyer pipe 104 on the steam pipe 102, make the gaseous circulation flow of heat transfer, one of them heat circulation conveyer pipe 104 is close to the one end of support housing 2 and is connected with connecting cylinder 105, is equipped with miniature air pump in the connecting cylinder 105, can drive gaseous flow after making the start-up of miniature air pump to drive the heat flow, and then improve the temperature of support housing 2, make second purification mechanism 4 and third purification mechanism 5 have a good reaction environment.

Referring to fig. 1-10, a support housing 2 is provided at one side of the smelting furnace 1 for providing multiple gas cleaning devices, and a first cleaning means 3, a second cleaning means 4 and a third cleaning means 5 are provided in the support housing 2 for targeted cleaning of different components of the gas.

Wherein, it has the cavity to open in the support shell 2 for the flow of gas, and the cavity in the support shell 2 is linked together with the one end that the smelting furnace 1 was kept away from to first conveyer pipe 101, makes the gas in the smelting furnace 1 can enter into the cavity in the support shell 2 to drive in the heat arrives the cavity, provide good environment for second purification mechanism 4 and third purification mechanism 5.

In addition, the bottom of the support housing 2 is provided with a slag discharge port for cleaning the ore slag and dust filtered by the filter screen 301, so that the dust and the ore slag are not accumulated in the support housing 2.

Referring to fig. 2 and 4, the first purifying mechanism 3 includes a filter screen 301 for blocking dust and ore slag, so that the gas discharged from the smelting furnace 1 can be primarily purified and filtered, a pair of fixed support rods 302 are provided below the filter screen 301 for supporting the fixed bearing 303, so as to increase the stability of the fixed bearing 303, the pair of fixed support rods 302 are all fixedly connected with the support housing 2, so that the fixed support rods 302 are free from shaking, and the meshing effect of the driven bevel gear 305 and the driving bevel gear 409 is not affected.

Referring to fig. 4, the fixed bearings 303 are connected to one ends of the pair of fixed support rods 302 away from the support housing 2, and are used for supporting the transmission rod 304, so that the transmission rod 304 is not inclined, and the transmission rod 304 can rotate freely, so that the connecting rope 306 drives the hitting ball 307 to rotate.

Referring to fig. 4, a transmission rod 304 is inserted into the fixed bearing 303 and is used for supporting the driven bevel gear 305, the connecting rope 306 and the striking ball 307, and when the driven bevel gear 305 rotates, the connecting rope 306 and the striking ball 307 can be driven to rotate by the transmission rod 304, and one end of the transmission rod 304 is provided with the driven bevel gear 305, so that when the driving bevel gear 409 rotates, the driven bevel gear 305 can be driven to rotate, and the transmission rod 304 is driven to rotate.

Specifically, one end of the transmission rod 304, which is far away from the driven bevel gear 305, is connected with a connecting rope 306 for pulling the hitting ball 307, so that the hitting ball 307 cannot fall off and drives the hitting ball 307 to rotate, and one end of the connecting rope 306, which is far away from the transmission rod 304, is fixedly connected with the hitting ball 307 for hitting the filter screen 301, thereby avoiding the filter screen 301 from being blocked.

Referring to fig. 2 and 5, the second purification mechanism 4 includes a pair of fixed support plates 401 for supporting the fixed cotton 402 so that microorganisms in the fixed cotton 402 do not fall off, and the fixed cotton 402 is mounted on each of the pair of fixed support plates 401 for storing microorganisms so that the microorganisms can purify the flowing gas.

Referring to fig. 5 and 9, a pair of fixed supporting plates 401 and the supporting housing 2 are provided with a driving worm 403 therebetween for supporting and driving the rotating blades 404 to rotate, and a plurality of rotating blades 404 uniformly distributed are provided on the pair of driving worms 403 for driving the gas to flow, so that the passing gas can better contact with the microorganisms on the fixed cotton 402.

A rotating support rod is inserted in the driving worm 403, so that the driving worm 403 can drive the rotating blade 404 to rotate, and when the helix angle of the driving worm 403 is greater than the self-locking angle, the driving worm gear 408 can drive the driving worm 403 to rotate conveniently.

Referring to fig. 2 to 6, a partition plate 405 is disposed on a side of the fixed support plate 401 away from the filter screen 301, and is used for supporting the first motor 406 and blocking air, a pair of first motors 406 is disposed on the partition plate 405 and is used for driving the first transmission shaft 407 to rotate, the pair of first motors 406 are both connected with the first transmission shaft 407, and the first transmission shaft 407 penetrates through the filter screen 301, the pair of fixed support plates 401 and the partition plate 405, so that the first transmission shaft 407 can drive the transmission turbine 408 to rotate and is not affected.

The partition plate 405 is perforated with vent holes to allow the gas to continue to flow upward, and the vent holes are disposed on a side away from the second transport pipe 602 to allow the gas to sufficiently contact the copper oxide 504, and the first transmission shaft 407 is provided with a plurality of fixing bolts fixedly connected to the support housing 2 to increase the stability of the first transmission shaft 407.

In addition, an auxiliary bearing is connected between the first transmission shaft 407 and the partition plate 405, so that the rotation of the first transmission shaft 407 is not affected by the partition plate 405, and seal sleeves are connected between the first transmission shaft 407 and the filter screen 301, the fixed support plate 401, and the fixed cotton 402, so that the first transmission shaft 407 is not affected by other components and gas does not leak when rotating.

Referring to fig. 4-5, a drive worm wheel 408 is mounted on one end of the first drive shaft 407 close to the drive worm 403 for driving the drive worm 403 to rotate, the drive worm wheel 408 is engaged with the drive worm 403 for facilitating the transmission, and a drive bevel gear 409 engaged with the driven bevel gear 305 is mounted on one end of the first drive shaft 407 far from the first motor 406 for driving the driven bevel gear 305 to rotate.

Referring to fig. 7 and 10, the third purification mechanism 5 includes a pair of support frames 501 for supporting the sliding support rods 502 and preventing the sliding support rods 502 from falling, the pair of support frames 501 are both fixedly connected to the support housing 2, so that the pair of support frames 501 cannot move or fall, and the sliding support rods 502 are slidably connected to the support frames 501 and are used for supporting a plurality of vertical support plates 503.

Specifically, a plurality of vertical support plates 503 which are uniformly distributed are arranged on one surface of the sliding support rod 502 which is far away from the support frame 501, and are used for supporting and fixing a plurality of copper oxides 504, and a plurality of copper oxides 504 which are uniformly distributed are arranged between a pair of vertical support plates 503 and are used for absorbing part of components in the flowing gas.

Wherein, the one end fixedly connected with closing plate that support housing 2 was kept away from to slip bracing piece 502 makes the staff conveniently take out and change copper oxide 504, is equipped with the rubber sleeve on the closing plate, makes the staff can pass through the screw fixation closing plate, and makes gas can not leak through the rubber sleeve.

Referring to fig. 1-8, the fourth cleaning mechanism 6 is disposed at one side of the supporting housing 2 for further cleaning the gas discharged from the smelting furnace 1, the fourth cleaning mechanism 6 includes a storage box 601 for storing sodium hydroxide solution, a second conveying pipe 602 is connected between the storage box 601 and the supporting housing 2 for conveying the gas, and a second motor 603 is disposed on the storage box 601 for driving a second transmission shaft 604 to rotate.

Referring to fig. 2 and 8, a second transmission shaft 604 is connected to the second motor 603 for driving the stirring blade 605 to rotate, the second transmission shaft 604 is inserted into the storage tank 601, and the stirring blade 605 is installed at one end of the second transmission shaft 604 located in the storage tank 601 for stirring the solution and improving the purification effect.

When the device is used specifically, a large amount of gas is generated during ore smelting, the gas enters the supporting shell 2 through the first conveying pipe 101, then the gas sequentially passes through the filter screen 301 to filter ore slag and dust, then contacts with the fixed cotton 402 in the rising process, microorganisms in the fixed cotton 402 can remove sulfur dioxide and partial harmful substances in the gas, then the gas continuously rises through the vent holes in the partition plate 405, and then contacts with the copper oxide 504, so that hydrogen and carbon monoxide in the gas are removed;

certain carbon dioxide is generated in the microbial purification and copper oxide purification processes, the generated carbon dioxide and the gas flowing along with the generated carbon dioxide enter the second conveying pipe 602, finally enter the storage box 601 and then contact with a sodium hydroxide solution, so that the carbon dioxide in the mixed gas is removed, and the discharged gas is no longer harmful to human bodies and no longer causes pollution to the environment;

the chemical separation and purification process is realized by using a dry separation mode, namely, fuel post-treatment is carried out without using water, wherein the dry separation mode comprises a high-temperature metallurgy method, a high-temperature chemical method and the like.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A dry separation and purification device of metallurgical smelting equipment is characterized by comprising:

the smelting furnace (1) is provided with a first conveying pipe (101) and is used for discharging gas generated during the working of the smelting furnace (1);

the supporting shell (2) is arranged on one side of the smelting furnace (1) and is used for arranging a multiple gas purification device, a first purification mechanism (3), a second purification mechanism (4) and a third purification mechanism (5) are respectively arranged in the supporting shell (2) and are used for specifically purifying different components in gas, and the supporting shell (2) is communicated with one end, away from the smelting furnace (1), of the first conveying pipe (101), so that the gas in the smelting furnace (1) can enter the supporting shell (2);

and the fourth purification mechanism (6) is arranged on one side of the support shell (2) and is used for further purifying the gas discharged by the smelting furnace (1).

2. The dry separation and purification device of a metallurgical smelting device according to claim 1, characterized in that a hot gas pipe (102) is sleeved on the smelting furnace (1), a plurality of fixed connecting rods (103) are fixedly connected between the hot gas pipe (102) and the smelting furnace (1), a pair of heat circulation conveying pipes (104) are connected to the hot gas pipe (102), and one end of one heat circulation conveying pipe (104) close to the supporting shell (2) is connected with a connecting cylinder (105).

3. The dry separation and purification device of a metallurgical smelting device according to claim 1, wherein the first purification mechanism (3) comprises a filter screen (301), a pair of fixed support rods (302) is arranged below the filter screen (301), the pair of fixed support rods (302) are fixedly connected with the support shell (2), and one ends of the pair of fixed support rods (302) far away from the support shell (2) are connected with fixed bearings (303).

4. The dry separation and purification device of the metallurgical smelting equipment according to claim 3, wherein a transmission rod (304) is inserted on the fixed bearing (303), a driven bevel gear (305) is installed at one end of the transmission rod (304), a connecting rope (306) is connected to one end, away from the driven bevel gear (305), of the transmission rod (304), and a knocking ball (307) is fixedly connected to one end, away from the transmission rod (304), of the connecting rope (306).

5. The dry separation and purification device of a metallurgical smelting device according to claim 1, wherein the second purification mechanism (4) comprises a pair of fixed support plates (401), fixed cotton (402) is mounted on each of the pair of fixed support plates (401), a transmission worm (403) is arranged between each of the pair of fixed support plates (401) and the support shell (2), and a plurality of uniformly distributed rotating blades (404) are arranged on each of the pair of transmission worm (403).

6. The dry separation and purification device of a metallurgical smelting device according to claim 5, wherein a partition plate (405) is arranged on one side of the fixed support plate (401) far away from the filter screen (301), a pair of first motors (406) is arranged on the partition plate (405), a first transmission shaft (407) is connected to each of the pair of first motors (406), and the first transmission shaft (407) penetrates through the filter screen (301), the pair of fixed support plates (401) and the partition plate (405).

7. The dry separation and purification device of the metallurgical smelting equipment according to claim 6, wherein a transmission turbine (408) is installed on one end of the first transmission shaft (407) close to the transmission worm screw (403), the transmission turbine (408) is meshed with the transmission worm screw (403), and a driving bevel gear (409) meshed with the driven bevel gear (305) is installed on one end of the first transmission shaft (407) far away from the first motor (406).

8. The dry separation and purification device of a metallurgical smelting device according to claim 1, wherein the third purification mechanism (5) comprises a pair of support frames (501), the pair of support frames (501) are fixedly connected with the support housing (2), a sliding support rod (502) is connected in the support frames (501) in a sliding manner, a plurality of uniformly distributed vertical support plates (503) are arranged on one surface, away from the support frames (501), of the sliding support rod (502), and a plurality of uniformly distributed copper oxide (504) are arranged between the pair of vertical support plates (503).

9. The dry separation and purification device of a metallurgical smelting plant according to claim 1, characterized in that the fourth purification mechanism (6) comprises a storage tank (601), a second delivery pipe (602) is connected between the storage tank (601) and the support housing (2), and a second motor (603) is arranged on the storage tank (601).

10. The dry separation and purification device of a metallurgical smelting plant according to claim 9, wherein a second transmission shaft (604) is connected to the second motor (603), the second transmission shaft (604) is inserted into the storage tank (601), and an end of the second transmission shaft (604) in the storage tank (601) is provided with a stirring blade (605).