CN110849063A - Cooling arrangement is used in fertilizer production - Google Patents

Cooling arrangement is used in fertilizer production Download PDF

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Publication number
CN110849063A
CN110849063A CN201911205477.2A CN201911205477A CN110849063A CN 110849063 A CN110849063 A CN 110849063A CN 201911205477 A CN201911205477 A CN 201911205477A CN 110849063 A CN110849063 A CN 110849063A
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China
Prior art keywords
inner shell
conical plate
organic fertilizer
motor
conical
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Granted
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CN201911205477.2A
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Chinese (zh)
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CN110849063B (en
Inventor
甘大禹
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Fuquan Yuyuan Biological Fertilizer Co Ltd
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Fuquan Yuyuan Biological Fertilizer Co Ltd
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Priority to CN201911205477.2A priority Critical patent/CN110849063B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D15/00Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fertilizers (AREA)
  • Fertilizing (AREA)

Abstract

The invention relates to the technical field of organic fertilizers, in particular to cooling equipment for organic fertilizer production, which comprises an inner shell, wherein a first conical plate with a downward conical opening is installed at the upper part of the inner side of the inner shell, electric telescopic rods are rotatably installed in the middle of the lower surface of the first conical plate, the output end of each electric telescopic rod is rotatably connected with a baffle, a material conveying barrel is fixedly penetrated through the middle of a third conical plate, a second conical plate is installed at the lower part of the inner side of the inner shell, a spiral conveying shaft penetrating through the material conveying barrel is installed at the output end of a first motor in a penetrating mode through the second conical plate, material discharging pipes are installed at two sides of the second conical plate, and a plurality of refrigerating sheets are installed on. Compared with the prior art, the multi-stage cooling device has the advantages that the organic fertilizer can be rapidly cooled through multi-stage cooling, the processing efficiency of the organic fertilizer is improved, meanwhile, the waste heat can be collected and utilized, the loss of cold air can be prevented, the using effect is good, the practicability is high, and the market popularization value is good.

Description

Cooling arrangement is used in fertilizer production
Technical Field
The invention relates to the technical field of organic fertilizers, in particular to cooling equipment for organic fertilizer production.
Background
The organic fertilizer is commonly called farmyard manure, comprises various animals, plant residues or metabolites, and mainly takes organic substance supply as a means to improve the physical and chemical properties of soil and promote the growth of plants and the circulation of a soil ecosystem.
The fertilizer often need carry out cooling treatment at the in-process of production, but current cooling arrangement cooling is single, and is inefficient, greatly reduced the production efficiency of fertilizer, is unfavorable for the rapid production of fertilizer, and the waste heat that cooling arrangement produced is extravagant greatly moreover, and air conditioning runs off easily simultaneously, is unfavorable for sustainable development, for this reason, we propose a cooling arrangement for fertilizer production.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides cooling equipment for producing organic fertilizers.
In order to achieve the purpose, the invention adopts the following technical scheme:
designing a cooling device for producing organic fertilizer, comprising an inner shell, wherein third connecting rods are respectively arranged on two sides of the upper surface of the inner shell, a top plate is arranged between the two third connecting rods, a second motor is arranged on the upper surface of the top plate, an output end of the second motor penetrates through the top plate to be arranged with a stirring shaft, a plurality of stirring rods are arranged on two sides of the stirring shaft, a first conical plate with a downward conical opening is arranged on the upper part of the inner side of the inner shell, baffles are respectively and rotatably arranged on two sides of the lower end of the first conical plate, an electric telescopic rod is respectively and rotatably arranged in the middle of the lower surface of the first conical plate, the output end of the electric telescopic rod is rotatably connected with the baffles, supporting legs are respectively and symmetrically arranged on two sides of the lower surface of the inner shell, a discharge opening is arranged in the middle of the lower surface of the inner shell, the middle part of third conical plate is fixed to run through there is the defeated storage bucket, second conical plate is installed to the inboard lower part of inner shell, the lower surface mid-mounting of second conical plate has first motor, the output of first motor runs through second conical plate and installs the spiral delivery axle of Europe through defeated storage bucket, the bracing piece fixed with second conical plate is installed to the lower extreme both sides of defeated storage bucket, the discharging pipe is installed to the both sides of second conical plate, install ejection of compact solenoid valve on the pipeline of discharging pipe, the surface of inner shell is run through and is installed there are a plurality of refrigeration pieces, connect through the wire between refrigeration piece, first motor, ejection of compact solenoid valve, electric telescopic handle and the second motor.
Preferably, a plurality of radiating fins are arranged on the surface of the inner shell, an outer shell is fixedly arranged on the outer side of the inner shell, and a heat exhaust pipe is arranged on the upper portion of one side of the outer shell.
Preferably, the last surface mounting of inner shell has last casing, the inboard middle part symmetry of going up the casing installs the head rod, two install the fourth conical plate between the head rod, the lower extreme edge of fourth conical plate rotates and installs a plurality of baffles, the spring is installed to one side of baffle, the lower surface mounting of fourth conical plate has a plurality of installation poles, the one end and the installation pole fixed connection of spring.
Preferably, a fifth tapered plate is fixedly mounted on the upper portion of the inner side of the upper housing.
Preferably, the stirring rods are sequentially shortened from top to bottom.
The cooling equipment for producing the organic fertilizer has the beneficial effects that: the invention has the advantages that the second motor drives the stirring shaft to rotate, the stirring shaft drives the stirring rod to rotate, the organic fertilizer can be preliminarily cooled and crushed, the first motor drives the spiral conveying shaft, the spiral conveying shaft can drive the organic fertilizer to fall after reciprocating upward movement, ultimate cooling of the organic fertilizer can be realized, the shell can collect heat generated by the refrigerating fins and waste heat dissipated outwards in cooling of the organic fertilizer, waste heat utilization is facilitated, the baffle can isolate the inside of the inner shell from the outside, and cold air in the inner shell is prevented from flowing away.
Drawings
FIG. 1 is a schematic structural view of a cross-sectional view of a cooling device for producing organic fertilizer, which is provided by the invention;
FIG. 2 is a schematic structural diagram of a top view of a cooling device for producing organic fertilizer according to the present invention;
fig. 3 is a schematic structural view of a front view of a cooling device for producing organic fertilizer.
In the figure: the device comprises a first connecting rod 1, an upper shell 2, a baffle 3, a stirring rod 4, a stirring shaft 5, an outer shell 6, an inner shell 7, an electric telescopic rod 8, a first conical plate 9, a second connecting rod 10, a second conical plate 11, a discharging pipe 12, a first motor 13, a discharging electromagnetic valve 14, a discharging port 15, a supporting leg 16, a supporting rod 17, a conveying barrel 18, a spiral conveying shaft 19, a third conical plate 20, a baffle 21, a heat discharging pipe 22, a refrigerating sheet 23, a spring 24, an installation rod 25, a third connecting rod 26, a top plate 27, a second motor 28, a fourth conical plate 29, a fifth conical plate 30 and a radiating fin 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a cooling device for organic fertilizer production, including inner shell 7, the surface mounting of inner shell 7 has a plurality of fin 31, and the outside fixed mounting of inner shell 7 has shell 6, and heat extraction pipe 22 is installed on one side upper portion of shell 6, can utilize the waste heat, is favorable to the saving of resource.
The upper surface mounting of inner shell 7 has last casing 2, and the inboard upper portion fixed mounting who goes up casing 2 has fifth conical plate 30, can carry out the water conservancy diversion to the fertilizer, makes the fertilizer feeding unanimous.
Go up the inboard middle part symmetry of casing 2 and install head rod 1, install fourth conical plate 29 between two head rods 1, a plurality of baffles 3 are installed in the lower extreme edge rotation of fourth conical plate 29, spring 24 is installed to one side of baffle 3, and a plurality of installation poles 25 are installed to the lower surface mounting of fourth conical plate 29, and spring 24's one end and installation pole 25 fixed connection can prevent the loss of air conditioning, make the utilization that the energy is more.
Third connecting rod 26 is all installed to the upper surface both sides of inner shell 7, installs roof 27 between two third connecting rods 26, and the last surface mounting of roof 27 has second motor 28, and the output of second motor 28 runs through roof 27 and installs (mixing) shaft 5, and a plurality of puddler 4 are installed to the both sides of (mixing) shaft 5, and puddler 4 from the top down shortens in proper order, and stirring effect is good, stirs the breakage fully.
A first conical plate 9 with a downward conical opening is installed on the upper portion of the inner side of the inner shell 7, baffle plates 21 are installed on two sides of the lower end of the first conical plate 9 in a rotating mode, an electric telescopic rod 8 is installed on the middle portion of the lower surface of the first conical plate 9 in a rotating mode, the output end of the electric telescopic rod 8 is connected with the baffle plates 21 in a rotating mode, supporting legs 16 are installed on two sides of the lower surface of the inner shell 7 in a symmetrical mode, a discharge opening 15 is formed in the middle portion of the lower surface of the inner shell 7, second connecting rods 10 are installed on the lower portion of the inner side of the inner shell 7 in a symmetrical mode, a third conical plate 20 is installed on the upper ends of the two second connecting rods 10 together, a material conveying barrel 18 penetrates through the middle portion of the third conical plate 20, a second conical plate 11 is installed on the lower portion of the inner side of, the support rods 17 fixed with the second conical plate 11 are installed on two sides of the lower end of the material conveying barrel 18, the material discharging pipes 12 are installed on two sides of the second conical plate 11, the discharging electromagnetic valves 14 are installed on the pipelines of the material discharging pipes 12, the plurality of refrigerating pieces 23 are installed on the surface of the inner shell 7 in a penetrating mode, and the refrigerating pieces 23, the first motor 13, the discharging electromagnetic valves 14, the electric telescopic rod 8 and the second motor 28 are connected through conducting wires.
The working principle is as follows: when the organic fertilizer cooling device is used, the second motor 28, the first motor 13 and the refrigerating sheet 23 are started, the refrigerating sheet 23 can enable the inner shell 7 to generate cold air, an organic fertilizer is put in from the upper side of the fifth conical plate 30, the baffle plate 3 is opened under the condition that the organic fertilizer is useful, the organic fertilizer enters the first conical plate 9, the second motor 28 drives the stirring shaft 5 to rotate, the stirring shaft 5 drives the stirring rod 4 to rotate, the organic fertilizer can be preliminarily cooled and crushed, the electric telescopic rod 8 is started, the electric telescopic rod 8 drives the baffle plate 21 to rotate, the organic fertilizer enters the second conical plate 11, the first motor 13 is arranged to drive the spiral conveying shaft 19, the spiral conveying shaft 19 can drive the organic fertilizer to fall after reciprocating upward movement, the ultimate cooling of the organic fertilizer can be realized, the outer shell 6 is arranged to collect heat generated by the refrigerating sheet 23 and waste heat dissipated outwards in cooling, and, baffle 3 that are equipped with can make the inside and the external world of inner shell 7 keep apart when closing, prevent that the air conditioning in the inner shell 7 from running off, open ejection of compact solenoid valve 14, and the fertilizer after the cooling is discharged from discharge gate 15.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. The utility model provides a cooling arrangement for fertilizer production, includes inner shell (7), its characterized in that, third connecting rod (26) are all installed to the upper surface both sides of inner shell (7), two install roof (27) between third connecting rod (26), the last surface mounting of roof (27) has second motor (28), the output of second motor (28) runs through roof (27) and installs (mixing) shaft (5), a plurality of puddlers (4) are installed to the both sides of (mixing) shaft (5), first bell plate (9) that the awl is decurrent is installed on the inboard upper portion of inner shell (7), baffle (21) are all installed in the rotation of the lower extreme both sides of first bell plate (9), electric telescopic handle (8) are all installed in the rotation of the lower surface middle part of first bell plate (9), the output and the baffle (21) of electric telescopic handle (8) rotate and are connected, the supporting legs (16) are symmetrically installed on two sides of the lower surface of the inner shell (7), a discharge port (15) is arranged in the middle of the lower surface of the inner shell (7), second connecting rods (10) are symmetrically installed on the lower portion of the inner side of the inner shell (7), two third conical plates (20) are installed on the upper ends of the second connecting rods (10) jointly, a conveying barrel (18) is fixedly penetrated through the middle of each third conical plate (20), a second conical plate (11) is installed on the lower portion of the inner side of the inner shell (7), a first motor (13) is installed in the middle of the lower surface of each second conical plate (11), a spiral conveying shaft (19) penetrating through the conveying barrel (18) is installed on the output end of each first motor (13) in a penetrating mode through each second conical plate (11), and a supporting rod (17) fixed with the second conical plates (11) is installed on, discharging pipe (12) are installed to the both sides of second cone plate (11), install ejection of compact solenoid valve (14) on the pipeline of discharging pipe (12), the surface of inner shell (7) is run through and is installed and has a plurality of refrigeration pieces (23), connect through the wire between refrigeration piece (23), first motor (13), ejection of compact solenoid valve (14), electric telescopic handle (8) and second motor (28).
2. The cooling device for producing the organic fertilizer as claimed in claim 1, wherein a plurality of cooling fins (31) are mounted on the surface of the inner shell (7), an outer shell (6) is fixedly mounted on the outer side of the inner shell (7), and a heat exhaust pipe (22) is mounted on the upper portion of one side of the outer shell (6).
3. The cooling device for organic fertilizer production according to claim 1, wherein the upper surface of the inner shell (7) is provided with an upper shell (2), the inner middle of the upper shell (2) is symmetrically provided with first connecting rods (1), a fourth conical plate (29) is arranged between the first connecting rods (1), the lower end edge of the fourth conical plate (29) is rotatably provided with a plurality of baffles (3), one side of each baffle (3) is provided with a spring (24), the lower surface of the fourth conical plate (29) is provided with a plurality of mounting rods (25), and one end of each spring (24) is fixedly connected with the mounting rods (25).
4. The cooling apparatus for organic fertilizer production according to claim 2, wherein a fifth conical plate (30) is fixedly mounted on the upper portion of the inner side of the upper casing (2).
5. The cooling apparatus for organic fertilizer production according to claim 1, wherein the stirring rod (4) is shortened from top to bottom.
CN201911205477.2A 2019-11-29 2019-11-29 Cooling equipment is used in fertilizer production Active CN110849063B (en)

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CN201911205477.2A CN110849063B (en) 2019-11-29 2019-11-29 Cooling equipment is used in fertilizer production

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Application Number Priority Date Filing Date Title
CN201911205477.2A CN110849063B (en) 2019-11-29 2019-11-29 Cooling equipment is used in fertilizer production

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CN110849063B CN110849063B (en) 2023-05-02

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Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09169420A (en) * 1995-09-04 1997-06-30 Siemens Ag Conveying device
US5659477A (en) * 1994-12-28 1997-08-19 Collins; Charles Michael Self reproducing fundamental fabricating machines (F-Units)
US20060283195A1 (en) * 2005-06-16 2006-12-21 Uwe Rosenbaum Process and apparatus for continuous cooling of pumpable material with a liquid cryogen
CN102603370A (en) * 2012-03-27 2012-07-25 河南农业大学 Treatment technology for producing organic fertilizer by tobacco field waste and fermentation tank thereof
CN203222555U (en) * 2013-05-14 2013-10-02 天津市瑞物有机肥有限公司 Biological organic fertilizer decomposition tank
CN104692849A (en) * 2015-03-24 2015-06-10 淮南润辉环保科技有限公司 Rapid organic fertilizer preparing technology
CN204699633U (en) * 2015-06-01 2015-10-14 浙江天禾生态科技有限公司 A kind of cold mixer prepared for PVC dry blend
CN205236110U (en) * 2015-12-12 2016-05-18 何玉珍 High -efficient rubbing crusher is used in production of pharmaceuticals processing
CN206325651U (en) * 2016-12-06 2017-07-14 青岛拜特尔化工有限公司 A kind of organic fertilizer reducing mechanism with cooling device
CN107319605A (en) * 2017-07-25 2017-11-07 赖高生 The one boar food processing drying integrated equipment of crushing
CN107552202A (en) * 2017-09-22 2018-01-09 郑州中技联创环境技术有限公司 A kind of efficiently bone meal preparation system and application method
CN108302957A (en) * 2018-04-13 2018-07-20 安徽富民生物有机肥有限公司 A kind of organic fertilizer cooling device having Quick-action type
CN108517289A (en) * 2018-05-18 2018-09-11 江西省食品发酵研究所 A kind of spiral cooled fermentation tank
CN207881302U (en) * 2018-01-23 2018-09-18 宜兴市永加化工有限公司 A kind of chemical industry cooling device
CN207941437U (en) * 2018-01-24 2018-10-09 进贤县昊轩林产品有限公司 Turpentine oil production stirring reliever
CN108821815A (en) * 2018-06-05 2018-11-16 安徽乐农环保科技有限公司 A kind of Zymolysis Equipment suitable for organic fertilizer production
CN208333175U (en) * 2018-05-09 2019-01-04 山丹县金禾谷生物科技有限公司 A kind of organic fertilizer production cooling device
CN208620872U (en) * 2018-06-27 2019-03-19 浙江新晶新材料有限公司 A kind of Feed Manufacturing cooling device
CN208660991U (en) * 2018-07-23 2019-03-29 代雪梅 A kind of Nutriology Dept. nutrient solution deployment device
CN109718694A (en) * 2019-01-08 2019-05-07 北京盛广拓再生科技股份有限公司 Winter cold-patch liquid production equipment
CN109746759A (en) * 2019-03-25 2019-05-14 杭州富阳孙氏机床有限公司 A kind of numerically-controlled machine tool cutting fluid cooling device
CN209039365U (en) * 2018-09-04 2019-06-28 莱芜市明珠肥料有限公司 Cooling cylinder is used in a kind of production of compound fertilizer
CN209049298U (en) * 2018-09-30 2019-07-02 焦作市金星耐火材料有限公司 A kind of efficient material mixer with refrigerating function
CN110285661A (en) * 2019-07-28 2019-09-27 东营市延旭环保科技有限公司 A kind of biogas combustion energy conservation organic fertilizer drying device
CN212237627U (en) * 2020-04-05 2020-12-29 北京海川利元材料科技有限公司 Material grinding device for chemical production

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659477A (en) * 1994-12-28 1997-08-19 Collins; Charles Michael Self reproducing fundamental fabricating machines (F-Units)
JPH09169420A (en) * 1995-09-04 1997-06-30 Siemens Ag Conveying device
US20060283195A1 (en) * 2005-06-16 2006-12-21 Uwe Rosenbaum Process and apparatus for continuous cooling of pumpable material with a liquid cryogen
CN102603370A (en) * 2012-03-27 2012-07-25 河南农业大学 Treatment technology for producing organic fertilizer by tobacco field waste and fermentation tank thereof
CN203222555U (en) * 2013-05-14 2013-10-02 天津市瑞物有机肥有限公司 Biological organic fertilizer decomposition tank
CN104692849A (en) * 2015-03-24 2015-06-10 淮南润辉环保科技有限公司 Rapid organic fertilizer preparing technology
CN204699633U (en) * 2015-06-01 2015-10-14 浙江天禾生态科技有限公司 A kind of cold mixer prepared for PVC dry blend
CN205236110U (en) * 2015-12-12 2016-05-18 何玉珍 High -efficient rubbing crusher is used in production of pharmaceuticals processing
CN206325651U (en) * 2016-12-06 2017-07-14 青岛拜特尔化工有限公司 A kind of organic fertilizer reducing mechanism with cooling device
CN107319605A (en) * 2017-07-25 2017-11-07 赖高生 The one boar food processing drying integrated equipment of crushing
CN107552202A (en) * 2017-09-22 2018-01-09 郑州中技联创环境技术有限公司 A kind of efficiently bone meal preparation system and application method
CN207881302U (en) * 2018-01-23 2018-09-18 宜兴市永加化工有限公司 A kind of chemical industry cooling device
CN207941437U (en) * 2018-01-24 2018-10-09 进贤县昊轩林产品有限公司 Turpentine oil production stirring reliever
CN108302957A (en) * 2018-04-13 2018-07-20 安徽富民生物有机肥有限公司 A kind of organic fertilizer cooling device having Quick-action type
CN208333175U (en) * 2018-05-09 2019-01-04 山丹县金禾谷生物科技有限公司 A kind of organic fertilizer production cooling device
CN108517289A (en) * 2018-05-18 2018-09-11 江西省食品发酵研究所 A kind of spiral cooled fermentation tank
CN108821815A (en) * 2018-06-05 2018-11-16 安徽乐农环保科技有限公司 A kind of Zymolysis Equipment suitable for organic fertilizer production
CN208620872U (en) * 2018-06-27 2019-03-19 浙江新晶新材料有限公司 A kind of Feed Manufacturing cooling device
CN208660991U (en) * 2018-07-23 2019-03-29 代雪梅 A kind of Nutriology Dept. nutrient solution deployment device
CN209039365U (en) * 2018-09-04 2019-06-28 莱芜市明珠肥料有限公司 Cooling cylinder is used in a kind of production of compound fertilizer
CN209049298U (en) * 2018-09-30 2019-07-02 焦作市金星耐火材料有限公司 A kind of efficient material mixer with refrigerating function
CN109718694A (en) * 2019-01-08 2019-05-07 北京盛广拓再生科技股份有限公司 Winter cold-patch liquid production equipment
CN109746759A (en) * 2019-03-25 2019-05-14 杭州富阳孙氏机床有限公司 A kind of numerically-controlled machine tool cutting fluid cooling device
CN110285661A (en) * 2019-07-28 2019-09-27 东营市延旭环保科技有限公司 A kind of biogas combustion energy conservation organic fertilizer drying device
CN212237627U (en) * 2020-04-05 2020-12-29 北京海川利元材料科技有限公司 Material grinding device for chemical production

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