CN216459435U - Prevent deposit powdered ore flotation agitator tank - Google Patents

Prevent deposit powdered ore flotation agitator tank Download PDF

Info

Publication number
CN216459435U
CN216459435U CN202123019011.9U CN202123019011U CN216459435U CN 216459435 U CN216459435 U CN 216459435U CN 202123019011 U CN202123019011 U CN 202123019011U CN 216459435 U CN216459435 U CN 216459435U
Authority
CN
China
Prior art keywords
stirring
shaft
tank
mixing
stirring tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202123019011.9U
Other languages
Chinese (zh)
Inventor
任超义
王兆平
国靖华
杨应克
崔强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Songxian Shanjin Mining Co ltd
Original Assignee
Songxian Shanjin Mining Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Songxian Shanjin Mining Co ltd filed Critical Songxian Shanjin Mining Co ltd
Priority to CN202123019011.9U priority Critical patent/CN216459435U/en
Application granted granted Critical
Publication of CN216459435U publication Critical patent/CN216459435U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

An anti-deposition mineral powder flotation stirring tank comprises a stirring tank and a stirring shaft, wherein the stirring shaft is positioned in the stirring tank, stirring blades are arranged on the stirring shaft, a turbulence mechanism is arranged above the joint of the bottom wall and the side wall of the stirring tank, the turbulence mechanism comprises a plurality of spoilers with upward sharp tops, and the spoilers are arranged around the inner side wall of the stirring tank at intervals; when the water flow stirred by the stirring blades meets the spoiler, a part of the water flow is turned downwards to wash the junction of the bottom wall and the side wall, so that the water speed at the junction is accelerated, and the deposition at the junction is prevented.

Description

Prevent mineral powder flotation agitation tank that deposits
Technical Field
The utility model relates to a mining stirring field, specific prevent deposit powdered ore flotation agitator tank that says so.
Background
The ore pulp flotation is generally to introduce ore pulp into a stirring tank, add a flotation reagent, evenly stir the ore pulp, overflow the ore pulp into the flotation tank from the upper part for flotation, and float and overflow useful minerals in the flotation tank under the action of air to produce concentrate.
The existing stirring tank has the problems that mineral powder in ore pulp is deposited and needs to be shut down and manually cleaned regularly because the stirring blades are away from the bottom, the water flow speed at the right-angle corner positions of the bottom wall and the side wall is reduced in the stirring process.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of mineral powder deposition in the stirring tank, the utility model provides an anti-deposition mineral powder flotation stirring tank, after the water flow stirred by the stirring blades meets a spoiler, a part of the water flow is turned downwards to wash the junction of the bottom wall and the side wall, the junction is arc-shaped, and the deposition at the junction is prevented; the provision of the diverter prevents bottom deposition and bottom wall and sidewall interface deposition.
In order to achieve the above object, the utility model discloses a concrete scheme does: the utility model provides an prevent deposit powdered ore flotation agitator tank, includes agitator tank and (mixing) shaft, inside the (mixing) shaft is located the agitator tank, is provided with stirring vane, its characterized in that on the (mixing) shaft: the utility model discloses a stirring tank, including stirring tank, the junction top of the diapire of stirring tank and lateral wall is provided with vortex mechanism, and vortex mechanism includes that a plurality of has the ascending spoiler in pinnacle, and the spoiler encircles the inside wall interval of stirring tank and arranges.
To the utility model relates to a prevent further optimization of deposit powdered ore flotation agitator tank: the longitudinal section of the stirring tank is an isosceles trapezoid section, and the obtuse angle joint of the bottom wall and the side wall is in arc transition.
To the utility model relates to a prevent further optimization of deposit powdered ore flotation agitator tank: and the two sides of the upper part of the stirring tank are provided with an ore pulp inlet and an overflow port, and the height of the overflow port is higher than that of the ore pulp inlet.
To the utility model relates to a prevent further optimization of deposit powdered ore flotation agitator tank: an L-shaped baffle is arranged above the ore pulp inlet, and the baffle forms a semi-closed space with a closed top, an open lower end and two open sides on the side wall.
To the utility model relates to a prevent further optimization of deposit powdered ore flotation agitator tank: one side of the spoiler is fixed on the inner side wall of the stirring groove through a plurality of connecting rods, and a gap through which ore pulp can flow is formed between the connecting rods.
To the utility model relates to a prevent further optimization of deposit powdered ore flotation agitator tank: the coaxial fixedly connected with drum of (mixing) shaft lower part, stirring vane fixed connection is in the drum both sides, and stirring vane inclines on vertical direction.
To the utility model relates to a prevent further optimization of deposit powdered ore flotation agitator tank: be provided with reposition of redundant personnel mechanism on the (mixing) shaft, reposition of redundant personnel mechanism includes the conical shunt with stirring shaft bottom end fixed connection, has seted up a plurality of slope diffluence orifice on the shunt conical surface, has seted up the rivers passageway coaxial with the (mixing) shaft on the (mixing) shaft, and diffluence orifice intercommunication rivers passageway and agitator tank inner chamber stir the in-process, injects high-speed rivers into the rivers passageway, spouts the junction of diapire and lateral wall with high-speed rivers slope downwards through the diffluence orifice.
Has the advantages that:
1) when water flow stirred by the stirring blades meets the spoiler, a part of the water flow is turned downwards to wash the junction of the bottom wall and the side wall, so that the water speed at the junction is accelerated, and the deposition at the junction is prevented;
2) the stirring blades are inclined in the vertical direction and are matched with the spoiler in the direction to realize the turbulence of the bottom water flow;
3) an inclined downward baffle is arranged above the ore pulp inlet, so that the injected ore pulp flows downward, and the ore pulp is prevented from directly overflowing from the overflow port without being fully stirred;
4) the utility model discloses in, at the stirring in-process of (mixing) shaft, through the high-speed rivers of reposition of redundant personnel structure to its oblique below blowout, make bottom ore pulp come-up.
Drawings
FIG. 1 is a schematic structural view of a stirring tank in embodiment 1 of the present invention;
FIG. 2 is a plan view of an agitation tank according to embodiment 1 of the present invention;
FIG. 3 is an enlarged view of the point A in FIG. 1
Fig. 4 is a schematic structural diagram of embodiment 8 of the present invention;
fig. 5 is a plan view of embodiment 8 of the present invention;
FIG. 6 is a top view of the deformation of the elastic defoamer in example 9;
FIG. 7 is a schematic view of the location of the elastomeric defoamer, chuck table and agitator shaft;
FIG. 8 is a partial enlarged view at B in FIG. 4;
description of the drawings: 1. the stirring tank comprises 101, 2 and an ore pulp inlet, 201, a baffle, 3, a spoiler, 301, a connecting rod, 4, an overflow port, 5, a stirring shaft, 501, a water flow channel, 6, a stirring blade, 601, a cylinder, 7, a flow divider, 701, a flow dividing hole, 702, a water inlet hole, 703, a water tank, 705, a sealing bearing, 706, a high-pressure water pipe, 8, an elastic defoamer, 801, a supporting strip, 802, a fourth gear, 803, a third gear, 804, a second gear, 805, a first gear, 806, a bearing, 807, a clamping table, 808, a rotating shaft, 809 and a collecting box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Including stirred tank 1, (mixing) shaft 5 and driving motor, driving motor sets up in stirred tank 1 top, to driving motor's fixed mode: when the stirring tank 1 is arranged in a plant, the driving motor is fixed on a portal frame of the plant; when the stirring tank 1 is arranged outdoors, a vertical upright post is arranged on one side of the stirring tank 1, a support is horizontally arranged at the top of the upright post, and a driving motor is fixed on the support. The (mixing) shaft 5 is located stirred tank 1 inside, and (mixing) shaft 5 is provided with stirring vane 6, and driving motor drives (mixing) shaft 5 and rotates, and then drives stirring vane 6 and rotate, accomplishes the stirring of ore pulp. The utility model discloses a stirring tank 1, including stirring tank 1, the junction top of diapire and lateral wall is provided with vortex mechanism, the distance of vortex mechanism and this junction is very little, vortex mechanism includes that a plurality of has the ascending spoiler 3 of pinnacle, spoiler 3 is the ascending "roof type" intergral template of pinnacle, spoiler 3 lower part forms vortex region 101, pinnacle department is the obtuse angle, make vortex region 101 bigger like this, spoiler 3 encircles 1 inside wall interval arrangements of stirring tank, the quantity of spoiler 3 can be 2-12, in this embodiment, 4 are selected to the quantity of spoiler 3, diapire and lateral wall junction easily produce the deposit because of the rivers reduction, rivers that are stirred when stirring vane 6 are meetting behind spoiler 3, some rivers direction changes, rivers wash the junction of diapire and lateral wall downwards promptly.
The utility model discloses in, spoiler 3 can also be formed by two boards concatenation, and the contained angle between two boards is acute angle or obtuse angle, and the connected mode of two boards can be the welding.
Example 2
This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: the longitudinal section of stirred tank 1 is the isosceles trapezoid cross-section, therefore, diapire and lateral wall are connected from the right angle and are become the obtuse angle and connect, and stirred tank 1 cross section can be square or circular, and in this embodiment, stirred tank 1 cross section is circular, and stirred tank 1 is round platform form bucket promptly, goes up the bottom surface diameter and is greater than bottom surface diameter down, and the obtuse angle junction of diapire and lateral wall is the arc transition, can not form the easy "dead angle" that produces the mineral powder deposit.
Example 3
This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: 1 upper portion both sides of stirred tank are provided with ore pulp entry 2 and overflow mouth 4, and both are close to the top setting of stirred tank 1, and ore pulp entry 2 and overflow mouth 4 can be circular or square etc. in this embodiment, and ore pulp entry 2 and overflow mouth 4 are circular through-hole. 2 departments of ore pulp entry are provided with the pipeline that stretches into in the stirred tank 1, through the pipeline to pouring into the ore pulp in the stirred tank 1, the ore pulp of stirring flows from overflow mouth 4, overflow mouth 4 highly be higher than the height of ore pulp entry 2, make the ore pulp liquid level in the stirred tank 1 be higher than behind the ore pulp entry 2, flow from overflow mouth 4 again, consequently, 2 in close contact with of pipeline and ore pulp entry, prevent that the ore pulp in the stirred tank 1 from flowing from the gap between pipeline and the ore pulp entry 2.
Example 4
This embodiment is an improved scheme based on embodiment 3, and the main structure thereof is the same as embodiment 1, and the improvement point is that: the top of ore pulp entry 2 is provided with L shape baffle 201, and baffle 2 can be the intergral template also can be that there are two boards to splice to form, and baffle 201 forms the top in the lateral wall and seals, lower extreme and both sides open-ended semi-closed space, and the ore pulp passes through ore pulp entry 2 and pours into the stirred tank 1 back into, runs into the downward flow that blocks of baffle 201, prevents that the ore pulp that gets into from not having the overflow mouth 4 outflow of direct follow opposite side of intensive stirring.
Example 5
This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: 3 one sides of spoilers are fixed on 1 inside wall of stirred tank through a plurality of connecting rod 301, have the clearance that can let the ore pulp flow through between the connecting rod 301, the quantity of connecting rod 301 can be 2-4 on every spoiler 3, in this embodiment, 3 are selected to the quantity of 3 upper junction plate 301 on every spoiler, arrange along 3 one side intervals of spoiler, under the condition that satisfies the demand, connecting rod 301's diameter will be sufficient little for the clearance grow between the connecting rod 301 is favorable to the ore pulp to flow through.
Example 6
This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: the lower part of the stirring shaft 5 is coaxially and fixedly connected with a cylinder 601, the stirring blades 6 are fixedly connected with two sides of the cylinder 601, the stirring blades 6 are inclined in the vertical direction, the connection mode of the cylinder 601 and the stirring shaft 5 can be welding or bolt connection, the connection mode of the stirring blades 6 and the cylinder 601 can be welding or bolt connection, in the embodiment, the stirring blades 6 are two thin plates, the width of the thin plates is smaller than the height of the cylinder 601, and the stirring blades 6 are easy to damage after long-time operation, therefore, in the embodiment, the stirring blades 6 and the cylinder 601 are connected through bolts, the two stirring blades 6 are fixed on two sides of the cylinder 601 and have different orientations, one of the two stirring blades extends towards the bottom of the stirring tank 1, the other one extends towards the top of the stirring tank 1, as shown in figure 1, during the stirring process, the inclined stirring blades 6 are matched with the spoiler 3 to make the water flow at the bottom of the stirring tank 1 turbulent, preventing the deposition of ore pulp.
Example 7
This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: the stirring shaft 5 is provided with a shunting mechanism, the shunting mechanism comprises a conical shunt 7 fixedly connected with the bottom end of the stirring shaft 5, the connection mode of the conical shunt 7 and the conical shunt can be welded connection, the conical surface of the shunt 7 is provided with a plurality of inclined shunting holes 701, the number of the shunting holes 701 can be 2-6, in the embodiment, the number of the shunting holes 701 is 4, the stirring shaft 5 is provided with a water flow channel 501 coaxial with the stirring shaft 5, the shunting holes 701 are communicated with the inner cavities of the water flow channel 501 and the stirring tank 5, in the stirring process, high-speed water flow is injected into the water flow channel 501 and is obliquely sprayed to the joint of the bottom wall and the side wall downwards through the shunting holes 701, in the embodiment, the water flow channel 501 is a through hole, the top end of the stirring shaft 5 is communicated with a high-pressure water pipe 706 through a conversion joint, and then high-speed water flow is injected into the water flow channel 501, at the moment, the driving motor drives the stirring shaft 5 to rotate through belt transmission, in the stirring process, high-speed water flow is sprayed to the joint of the bottom wall and the side wall through the diverter 7 to provide an oblique force for the ore pulp at the joint, so that the ore pulp at the joint floats upwards.
Example 8
This embodiment is an improved scheme based on embodiment 7, and the main structure thereof is the same as that of embodiment 1, and the improvement point is that: as shown in fig. 8, when the stirring shaft 5 is directly connected to the main shaft of the driving motor, the water flow channel 501 is a blind hole with an open bottom and a closed top, and the injection manner of the high-speed water flow is as follows: the upper part of the stirring shaft 5 is provided with a water tank 703, the stirring shaft 5 penetrates through the water tank 703 and is connected with the water tank through a sealing bearing 705, the inner cavity of the water tank 703 is communicated with a high-pressure water pipe 706, a water inlet hole 702 vertical to a water flow channel is formed in the stirring shaft 5, and the water inlet hole 702 is communicated with the inner cavity of the water tank 703 and the water flow channel 501.
Example 9
This embodiment is an improved scheme based on embodiment 1, and the main structure thereof is the same as embodiment 1, and the improvement point is that: in the process of stirring ore pulp, a large amount of foam is floated on the liquid level in the stirring tank 1, therefore, a defoaming mechanism is arranged above the stirring tank 1, the defoaming mechanism comprises a reticular elastic defoamer 8 capable of rotating around a stirring shaft 5, the elastic defoamer 8 is in a rectangular reticular shape, the length of the elastic defoamer 8 is smaller than the radius of the stirring tank 1, the elastic defoamer 8 is obliquely arranged above the liquid level in the stirring tank 1, the elastic defoamer 8 is obliquely arranged in the vertical direction, as shown in figure 7, a clamping platform 807 is arranged at the edge of the motion track of the elastic defoamer 8, the clamping platform is fixedly connected to the inner side wall of the stirring tank, the connection mode of the clamping platform and the stirring tank can be welding, a collecting barrel 809 is arranged above the elastic defoamer 8, the blocking of the clamping platform 807 can be overcome in the rotation process of the elastic defoamer 8, the foam is thrown into the collecting barrel 809 under the action of the elasticity of the defoamer 8, most of the foam can be collected in the slow rotation process of the elastic defoamer 8, when moving to ka tai 807 department, receive blockking of ka tai 807, elasticity defoamer 8 is not rotating this moment, self produces bending deformation, to certain extent when crooked, elasticity defoamer 8 crosses ka tai 807, it resumes under the effect of self elasticity, throw the foam in the net to the collecting vessel 809 of a slope in the in-process that resumes, elasticity defoamer 8 does not contact with the liquid level, prevent adhesion ore pulp on the elasticity defoamer 8, influence its elasticity, collecting vessel 809's fixed mode is the same with driving motor's fixed mode, collecting vessel 809's bottom intercommunication has one to draw the bubble pipe, draw the foam in the collecting vessel 809 out.
Example 9
This embodiment is an improved scheme based on embodiment 8, and the main structure thereof is the same as that of embodiment 1, and the improvement point is that: the power source of elasticity defoamer 8 and the rotation of (mixing) shaft 5, but the rotational speed of (mixing) shaft 5 is too fast, need set up the speed reduction subassembly between (mixing) shaft 5 and elasticity defoamer 8 for elasticity blender 8 is around (mixing) shaft 5 slow rotation. The speed reducing assembly comprises a first gear 805 fixedly connected to the stirring shaft 5 and a fourth gear 802 connected to the stirring shaft 5 through a bearing, the first gear 805 is in interference fit with the stirring shaft 5, the first gear 805 is arranged above the fourth gear 802, the first gear 805 is meshed with a second gear 804, the second gear 804 is fixedly connected with a rotating shaft 808, the rotating shaft 808 is fixedly connected with a third gear 803 coaxial with the second gear 804, the third gear 803 is arranged below the second gear 804, and the third gear 803 is meshed with the fourth gear 802, wherein, first gear 805 diameter is less than second gear 804 diameter, and third gear 803 diameter is less than fourth gear 802, and elasticity defoaming ware 8 passes through support bar 801 fixed connection on fourth gear 802 surface, and the quantity of support bar can be 1-3, and in this embodiment, the quantity of support bar selects 1, and the rotation of (mixing) shaft 5 drives the rotation of elasticity defoaming ware 8.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The utility model provides an anti-deposit powdered ore flotation agitator tank, includes agitator tank (1) and (mixing) shaft (5), inside (mixing) shaft (5) were located agitator tank (1), be provided with stirring vane (6) on (mixing) shaft (5), its characterized in that: the utility model discloses a stirring tank, including stirring tank (1), the junction top of the diapire of stirring tank (1) and lateral wall is provided with vortex mechanism, and vortex mechanism includes that a plurality of has top spoiler (3) up, and spoiler (3) encircle stirring tank (1) inside wall interval and arrange.
2. The anti-settling ore fines flotation cell of claim 1, wherein: the longitudinal section of the stirring tank (1) is an isosceles trapezoid section, and the obtuse angle joint of the bottom wall and the side wall is in arc transition.
3. The anti-settling ore fines flotation cell of claim 1, wherein: the two sides of the upper part of the stirring tank (1) are provided with an ore pulp inlet (2) and an overflow port (4), and the height of the overflow port (4) is higher than that of the ore pulp inlet (2).
4. The anti-settling ore fines flotation cell of claim 3, wherein: an L-shaped baffle (201) is arranged above the ore pulp inlet (2), the baffle (201) forms a semi-closed space with a closed top, an open lower end and two open sides on the side wall.
5. The anti-settling ore fines flotation cell of claim 1, wherein: one side of the spoiler (3) is fixed on the inner side wall of the stirring tank (1) through a plurality of connecting rods (301), and a gap through which ore pulp can flow is formed between the connecting rods (301).
6. The anti-settling ore fines flotation cell of claim 1, wherein: the stirring shaft (5) is coaxially and fixedly connected with a cylinder (601) at the lower part, stirring blades (6) are fixedly connected to two sides of the cylinder (601), and the stirring blades (6) are inclined in the vertical direction.
7. The anti-settling ore fines flotation cell of claim 1, wherein: be provided with reposition of redundant personnel mechanism on (mixing) shaft (5), reposition of redundant personnel mechanism include with (mixing) shaft (5) bottom fixed connection's conical shunt (7), a plurality of slope diffluence hole (701) have been seted up on shunt (7) conical surface, seted up on (mixing) shaft (5) with (mixing) shaft (5) coaxial rivers passageway (501), diffluence hole (701) intercommunication rivers passageway (501) and stirred tank (5) inner chamber, the stirring in-process, to pouring into high-speed rivers in rivers passageway (501), spout the junction of diapire and lateral wall through diffluence hole (701) with high-speed rivers tilt down.
CN202123019011.9U 2021-12-03 2021-12-03 Prevent deposit powdered ore flotation agitator tank Active CN216459435U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123019011.9U CN216459435U (en) 2021-12-03 2021-12-03 Prevent deposit powdered ore flotation agitator tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123019011.9U CN216459435U (en) 2021-12-03 2021-12-03 Prevent deposit powdered ore flotation agitator tank

Publications (1)

Publication Number Publication Date
CN216459435U true CN216459435U (en) 2022-05-10

Family

ID=81402995

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123019011.9U Active CN216459435U (en) 2021-12-03 2021-12-03 Prevent deposit powdered ore flotation agitator tank

Country Status (1)

Country Link
CN (1) CN216459435U (en)

Similar Documents

Publication Publication Date Title
CN107695022A (en) A kind of water-saving efficiently tealeaves water washing device
CN112169679B (en) Chemical industry liquid material ratio hybrid processing is sealed splashproof mechanism for equipment
CN216459435U (en) Prevent deposit powdered ore flotation agitator tank
CN215917128U (en) Stirring tank
CN213725957U (en) Lime milk stirring tank capable of automatically discharging slag
CN210341540U (en) Can prevent sedimentary water drainage tank of silt
CN104772231A (en) Complete equipment for pre-desliming floatation
CN201609644U (en) Three-dimensional agitator with vertical shaft and cantilever structure
CN211646001U (en) Hollow thin-wall high-pier discharging device
CN110565536B (en) Hollow thin wall high mound blowing device
CN206512516U (en) The steady stock tank of deslagging drum sieve
CN220573313U (en) Anti-precipitation reaction kettle for water-based floor paint
CN217829552U (en) Feeding device for desulfurization spraying of boiler tail gas in yellow phosphorus workshop
CN204866216U (en) Desliming flotation complete sets in advance
CN217196090U (en) Material accumulation preventing structure of dry-mixed mortar mixer
CN206927622U (en) A kind of purging system for bunt gypsum cleaning
CN109970189A (en) Jet stream anaerobic reactor
CN214715797U (en) Stirring device capable of accelerating full dissolution and mixing of polyacrylamide particles
CN216756316U (en) Feeding device is used in preparation of grey water dispersant for large-scale multinozzle gasification equipment
CN212417101U (en) Sedimentation tank is used in flocculating agent production
CN214029044U (en) Outboard washing tank water spreader for marine desulfurization tower exhaust
CN216149549U (en) Agitating unit for hydraulic engineering
CN220003066U (en) Efficient sedimentation tank
CN109176871A (en) A kind of concrete central mix plant
CN220737129U (en) Industrial chemicals agitator tank

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant