CN107824454B - Oil sand particle size sieve equipment and use method - Google Patents

Oil sand particle size sieve equipment and use method Download PDF

Info

Publication number
CN107824454B
CN107824454B CN201710168859.7A CN201710168859A CN107824454B CN 107824454 B CN107824454 B CN 107824454B CN 201710168859 A CN201710168859 A CN 201710168859A CN 107824454 B CN107824454 B CN 107824454B
Authority
CN
China
Prior art keywords
sieve
oil sand
oil
container
layer
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
CN201710168859.7A
Other languages
Chinese (zh)
Other versions
CN107824454A (en
Inventor
吴兆徽
吴光焕
李伟忠
牛丽娟
刘西雷
翟麟秀
吴颖昊
路言秋
李伟
李珊珊
陈明铭
杨鹏
孙钰
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.)
China Petroleum and Chemical Corp
Exploration and Development Research Institute of Sinopec Shengli Oilfield Co
Original Assignee
China Petroleum and Chemical Corp
Exploration and Development Research Institute of Sinopec Shengli Oilfield Co
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 China Petroleum and Chemical Corp, Exploration and Development Research Institute of Sinopec Shengli Oilfield Co filed Critical China Petroleum and Chemical Corp
Priority to CN201710168859.7A priority Critical patent/CN107824454B/en
Publication of CN107824454A publication Critical patent/CN107824454A/en
Application granted granted Critical
Publication of CN107824454B publication Critical patent/CN107824454B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B3/00Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B7/00Elements of centrifuges
    • B04B7/08Rotary bowls
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02Investigating particle size or size distribution
    • G01N15/0272Investigating particle size or size distribution with screening; with classification by filtering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses oil sand grain size sieve equipment and a using method thereof, wherein the equipment comprises a grain size sieve device, the grain size sieve device comprises a sieve body assembly and a grain size sieve driving device for driving the sieve body assembly to centrifugally rotate, and the sieve body assembly comprises an outermost layer grooved sieve-pore-free container and a multi-layer grade sieve pore size sieve which are sequentially sleeved together from outside to inside. The multi-layer mesh sieve size sieve comprises at least three sieves, wherein the outer layer fine-mesh sieve, the middle layer medium-mesh sieve and the inner layer coarse-mesh sieve are arranged from outside to inside respectively. Still include preprocessing device, preprocessing device includes preprocessing container, agitating unit, rock sample advance the appearance blade, the rock sample advances the appearance blade and transversely puts in preprocessing container, agitating unit installs in preprocessing container and is located rock sample advance the appearance blade below. The equipment provided by the invention is simple to apply, has better operability, innovativeness and practicability, is easy to popularize, and provides a feasible method for screening oil sand with various particle sizes.

Description

Oil sand particle size sieve equipment and use method
Technical Field
The invention relates to oil sand granularity screening equipment, in particular to oil sand granularity screening equipment and a using method thereof.
Background
1. The traditional laser method is used for measuring the granularity, and the percentage of the whole oil sand body space is calculated only by outlining and analyzing the particles on one surface of the rock. The granularity condition of the whole oil sand body space is not accurate enough according to the condition of one surface of the rock.
2. The tradition screens the granularity with sieve hand, because many sieve meshes are stopped up by the large granule, the upper portion tiny particle is difficult to reach the sieve mesh, and not only operating means is many, often will the loop operation many times moreover, could accomplish manual granularity screening with the sieve.
By searching key words such as oil sand, granularity, screening and the like, no equipment specially used for screening oil sands with various granularities is found. For example, the novel oil sand filtering device disclosed by publication No. CN 204457724U, published Japanese 2015-07-08 solves the problem that only one filtering layer is arranged to block all oil sand and does not solve the problem of screening the oil sand; for another example, the oil sand extraction and separation process disclosed in publication No. CN 104178202B, published Japanese 2016-02-17 aims to solve the problem of subsequent work after screening oil sand and also does not solve the problem of screening oil sand.
It can be seen that the technical problems to be solved by the present application, which are not solved by the above prior art, are not solved.
Disclosure of Invention
The invention aims to provide oil sand granularity sieve equipment and a using method thereof, the equipment is simple to apply, has better operability, innovativeness and practicability, is easy to popularize, and provides a feasible method for screening oil sand with various granularities.
In order to achieve the purpose, the invention adopts the following technical scheme that the oil sand grain size sieve equipment comprises a grain size sieve device, wherein the grain size sieve device comprises a sieve body assembly and a grain size sieve driving device for driving the sieve body assembly to centrifugally rotate, and the sieve body assembly comprises an outermost layer grooved sieve-pore-free container and a multi-layer grade sieve-pore grain size sieve which are sequentially sleeved together from outside to inside.
The multi-layer mesh sieve size sieve comprises at least three sieves, wherein the outer layer fine-mesh sieve, the middle layer medium-mesh sieve and the inner layer coarse-mesh sieve are arranged from outside to inside respectively.
The outer-layer container with a groove and without sieve pores, the outer-layer fine-granularity sieve, the middle-layer medium-granularity sieve and the inner-layer coarse-granularity sieve are coaxially sleeved together.
The particle size sieve driving device is a particle size sieve rotating brushless motor, and an output shaft of the particle size sieve rotating brushless motor is connected to the center of the bottom surface of the outermost layer of the container with the belt grooves and without sieve pores.
And the top of the outermost layer grooved and non-sieve-hole container is provided with a grooved and buckled top cover.
Still include preprocessing device, preprocessing device includes preprocessing container, agitating unit, rock sample advance the appearance blade, the rock sample advances the appearance blade and transversely puts in preprocessing container, agitating unit installs in preprocessing container and is located rock sample advance the appearance blade below.
Agitating unit includes that rotating electrical machines, (mixing) shaft, the cylindric oil sand that does not throw an edge stir and scatter the rod, rotating electrical machines installs in the preliminary treatment container bottom and drives the (mixing) shaft rotatory, the cylindric oil sand that does not throw an edge stirs and scatters the rod and install on the (mixing) shaft.
And an oil sand pushing handle is arranged above the rock sample feeding blade.
And lubricating oil is filled in the pretreatment container, and the upper liquid level of the lubricating oil is lower than the lower end face of the rock sample injection blade.
In order to achieve the purpose, the invention adopts the following technical scheme that the screening method of the oil sand grain size screen equipment is characterized by comprising the following steps of:
step 1, pouring lubricating oil into an oil sand pretreatment device, and putting oil sand into the oil sand pretreatment device;
step 2, applying pressure to enable the oil sand core to pass through a blade device to divide the oil sand into blocks;
step 3, starting a power supply of a stirring device of the pretreatment device, and scattering the oil sand by using a spiral cylindrical roller;
step 4, pouring the mixture of the oil sand and the lubricating oil into a particle size sieve device, and covering and sealing after supplementing the lubricating oil;
step 5, starting a particle size sieve of the particle size sieve equipment to rotate the brushless motor, so that the brushless motor rotates at a high speed;
step 6, blocking coarse-grained oil sand by an inner-layer sieve, blocking medium-grained oil sand by a middle-layer sieve, and blocking fine-grained oil sand by an outer-layer sieve;
and 7, screening the oil sands with different particle sizes after rotation, and calculating the percentage of the oil sands with different particle sizes or performing separate experiments on the oil sands with different particle sizes.
Compared with the prior art, the invention has the following beneficial effects:
the installed oil sand pretreatment device is divided into three parts, wherein the three parts comprise a pressing part, a cutting part and a scattering part from top to bottom. The device for scattering oil sand is a spiral cylindrical roller without edges and corners or cutting edges, and oil sand particles are scattered by the device.
A plurality of grooves are formed in the cover of the oil sand particle size screen, so that the particle size screen is prevented from being thrown out in the high-speed rotating process. The oil sand particle size sieve has a multilayer structure, namely, the oil sand with different particle sizes is screened out through a multistage particle size sieve.
The oil sand granularity sieve device disclosed by the invention is simple in equipment application, good in operability, innovative and practical, easy to popularize and capable of providing a feasible method for sieving oil sands with various granularities.
Drawings
FIG. 1 is a schematic view of a particle size screen apparatus of an oil sand particle size screen apparatus of the present invention;
FIG. 2 is a schematic diagram of a pretreatment unit of an oil sand size screen apparatus of the present invention;
FIG. 3 is a flow chart of the present invention.
In the figure: 1-oil sand pushing handle; 2-original oil sand sample; 3-rock sample feeding blade; 4-non-edged cylindrical oil sand stirring and scattering rod; 5-lubricating oil; 6-a rotating electrical machine; 7-a top cover with a groove and a buckle; 8-inner layer coarse particle size sieve; 9-middle layer medium particle size sieve; 10-outer fine particle size sieve; 11-outermost layer of container with grooves and without sieve pores; 12-mesh sieve rotating brushless motor.
Detailed Description
The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings, which are, however, for reference and illustration purposes only and are not intended to limit the present invention.
According to fig. 1, fig. 2 show, an oil sand particle size sieve equipment, includes the particle size sieve device, the particle size sieve device includes screen frame assembly and drives the screen frame assembly and carry out centrifugal rotatory particle size sieve drive arrangement, screen frame assembly includes outermost trough of belt no sieve mesh container 11, the multistage sieve mesh particle size sieve of suit in proper order from outside to inside together. The multi-layer mesh sieve size sieve comprises at least three layers, namely an outer layer fine-mesh sieve 10, a middle layer medium-mesh sieve 9 and an inner layer coarse-mesh sieve 8 from outside to inside.
The outer-layer container with a groove and without sieve pores, the outer-layer fine-granularity sieve, the middle-layer medium-granularity sieve and the inner-layer coarse-granularity sieve are coaxially sleeved together.
The particle size sieve driving device is a particle size sieve rotating brushless motor 12, and an output shaft of the particle size sieve rotating brushless motor is connected to the center of the bottom surface of the outermost layer of the grooved non-sieve-hole container.
And the top of the outermost layer grooved and non-sieve-hole container is provided with a grooved and buckled top cover 7.
Still include preprocessing device, preprocessing device includes preprocessing container, agitating unit, rock sample advance kind blade 3, the rock sample advances kind blade horizontal in preprocessing container, agitating unit installs in preprocessing container and is located rock sample advance kind blade below.
Agitating unit includes that rotating electrical machines 6, (mixing) shaft, the cylindric oil sand that does not throw an edge stir and scatter rod 4, rotating electrical machines installs in the preliminary treatment container bottom and drives the (mixing) shaft rotatory, the cylindric oil sand that does not throw an edge stirs and scatters the rod and install on the (mixing) shaft.
An oil sand pushing handle 1 is arranged above the rock sample feeding blade.
And lubricating oil 5 is filled in the pretreatment container, and the upper liquid level of the lubricating oil is lower than the lower end surface of the rock sample feeding blade.
As shown in fig. 3, fig. 3 is a flow chart of the operation of the oil sand size screen apparatus of the present invention.
Step 101, installing an oil sand pretreatment device, pouring lubricating oil into the oil sand pretreatment device, and putting the oil sand into the oil sand pretreatment device;
102, pressing to enable the oil sand-shaped core to pass through a blade device to divide the oil sand into blocks;
103, starting a power supply of a pretreatment device, and scattering the oil sand by using a cylindrical stirring rod;
step 104, pouring the mixture of the oil sand and the lubricating oil into 'particle size sieve equipment', and covering and sealing after supplementing the lubricating oil;
step 105, starting the particle size sieve equipment to rotate at high speed;
106, blocking the coarse-grained oil sand by an inner-layer sieve, blocking the medium-grained oil sand by a middle-layer sieve, and blocking the fine-grained oil sand by an outer-layer sieve;
and step 107, separating and screening the oil sand with different particle sizes after the experiment is completed.
According to the operation method, the screening of the oil sands with different particle sizes can be realized, so that the experiment is carried out on the oil sands with different particle sizes, or the mass percentages of the oil sands with different particle sizes are obtained. The flow ends.
In one embodiment of the present invention, the apparatus is constructed to screen oil sands from coarse to fine, and specifically comprises the following steps:
step 1, installing an oil sand pretreatment device, pouring lubricating oil into the oil sand pretreatment device, and putting the oil sand into the oil sand pretreatment device;
step 2, applying pressure to enable the oil sand-shaped core to pass through a blade device to divide the oil sand into blocks;
step 3, starting a power supply of the pretreatment device, and scattering the oil sand by using a cylindrical stirring rod;
step 4, pouring the mixture of the oil sand and the lubricating oil into 'particle size sieve equipment', and covering and sealing after supplementing the lubricating oil;
step 5, starting the particle size sieve equipment to rotate at a high speed, and separating oil sand with different particle sizes;
step 6, after separation, collecting the fine, medium and coarse oil sands among the outermost layer sieve pore-free container, the outer layer sieve, the middle layer sieve and the inner layer sieve respectively, and digging out the oil sands by a spoon along the sieve wall respectively;
and 7, after the experiment is completed, screening and separating the oil sands with three different particle sizes.
In the step 1, the installed oil sand pretreatment device is divided into three parts, wherein the three parts comprise three parts, namely pressing, cutting and scattering from top to bottom;
in step 2, cutting loose oil sand into blocks by a built-in blade device;
in the step 3, the device for scattering the oil sand is a cylindrical spiral stick without edges and corners and blades, and oil sand particles are scattered by the device;
in the step 4, a plurality of grooves are formed in the cover of the oil sand particle size sieve, so that the particle size sieve is prevented from being thrown out in the high-speed rotating process;
in step 5, starting a particle size screen device, and dispersing oil sands with different particle sizes as spatially as possible by high-speed rotation so as to facilitate screening;
in step 6, the oil sand size screen has a multi-layer structure, namely, the oil sand with different sizes is screened by the multi-stage size screen.
In step 7, due to the separation of the oil sands with different particle sizes by the multi-stage particle size sieve, the oil sands with different particle sizes can be weighed, the percentage content can be calculated, or further experiments can be respectively carried out.
The oil sand granularity sieve equipment is convenient to operate and easy to popularize, and provides a practical and effective method for screening the oil sand granularity.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, but rather should be construed in all respects as illustrative and not restrictive.

Claims (1)

1. The oil sand particle size sieve equipment is characterized by comprising a sieve body assembly and a particle size sieve driving device for driving the sieve body assembly to centrifugally rotate, wherein the sieve body assembly comprises an outermost layer container with a belt and without sieve pores and a plurality of layers of sieves which are sequentially sleeved together from outside to inside, and the plurality of layers of sieves at least comprise three layers of sieves which are respectively an outer layer fine-pore sieve, a middle layer medium-pore sieve and an inner layer coarse-pore sieve from outside to inside; the outermost layer of the container with the grooves and without the sieve pores, the outer layer of the fine-pore sieve, the middle layer of the medium-pore sieve and the inner layer of the coarse-pore sieve are coaxially sleeved together;
the particle size sieve driving device is a brushless motor, an output shaft of the brushless motor is connected to the center of the bottom surface of the outermost layer of the container with the belt slots and without sieve pores, and a sealing cover is arranged at the top of the outermost layer of the container with the belt slots and without sieve pores;
the particle size sieve driving device further comprises a pretreatment device, the pretreatment device comprises a pretreatment container, a stirring device and a rock sample feeding blade, the rock sample feeding blade is transversely arranged in the pretreatment container, and the stirring device is arranged in the pretreatment container and is positioned below the rock sample feeding blade; the stirring device comprises a rotating motor, a stirring shaft and a cylindrical oil sand stirring rod without cutting edges, wherein the rotating motor is arranged at the bottom of the pretreatment container and drives the stirring shaft to rotate, and the cylindrical oil sand stirring rod without cutting edges is arranged on the stirring shaft; an oil sand pushing handle is arranged above the rock sample feeding blade, lubricating oil is filled in the pretreatment container, and the upper liquid level of the lubricating oil is lower than the lower end face of the rock sample feeding blade;
the method for screening the oil sand from coarse to fine by using the oil sand granularity screening equipment comprises the following steps:
step 1, installing an oil sand pretreatment device, pouring lubricating oil into the oil sand pretreatment device, and putting the oil sand into the oil sand pretreatment device; the installed oil sand pretreatment device is divided into three parts, wherein the three parts comprise three parts, namely pressing, cutting and scattering from top to bottom;
step 2, applying pressure to enable the oil sand-shaped core to pass through a built-in blade device, and cutting loose oil sand into blocks;
step 3, starting a power supply of the pretreatment device, and scattering the oil sand by using a cylindrical stirring rod; the device for scattering the oil sand is a cylindrical stirring rod without edges and corners and cutting edges, and oil sand particles are scattered by the device;
step 4, pouring the mixture of the oil sand and the lubricating oil into oil sand granularity sieve equipment, and sealing by covering a cover of the oil sand granularity sieve after supplementing the lubricating oil; the cover of the oil sand particle size sieve is internally provided with a plurality of grooves, so that the oil sand particle size sieve is prevented from being thrown out in a high-speed rotating process;
step 5, starting oil sand granularity sieve equipment to rotate at a high speed, and dispersing oil sands with different granularity in space through high-speed rotation so as to be convenient for separation and screening;
step 6, after separation, collecting the fine, medium and coarse oil sands among a container with a grooved outermost layer and without sieve pores, an outer fine-pore sieve, a middle medium-pore sieve and an inner coarse-pore sieve respectively, and digging out the oil sands respectively along the sieve walls by using a spoon; the oil sand granularity sieve has a multi-level structure, and oil sands with different granularities are screened through the multi-level oil sand granularity sieve;
and 7, after the steps are completed, screening and separating the oil sands with three different particle sizes.
CN201710168859.7A 2017-03-20 2017-03-20 Oil sand particle size sieve equipment and use method Active CN107824454B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710168859.7A CN107824454B (en) 2017-03-20 2017-03-20 Oil sand particle size sieve equipment and use method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710168859.7A CN107824454B (en) 2017-03-20 2017-03-20 Oil sand particle size sieve equipment and use method

Publications (2)

Publication Number Publication Date
CN107824454A CN107824454A (en) 2018-03-23
CN107824454B true CN107824454B (en) 2021-07-06

Family

ID=61643075

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710168859.7A Active CN107824454B (en) 2017-03-20 2017-03-20 Oil sand particle size sieve equipment and use method

Country Status (1)

Country Link
CN (1) CN107824454B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108855578A (en) * 2018-05-28 2018-11-23 江苏力连重工机械有限公司 A kind of concrete washing separation and recovery equipment
CN111098425A (en) * 2019-12-06 2020-05-05 陈爱华 Production of fire-retardant plastics combined material is with pelleter that has separation function
CN111890228B (en) * 2020-08-04 2022-02-18 张家港市金陵纺织有限公司 A preparation facilities that is used for adhesion sand grain of surface fabric sand washing
CN111889371A (en) * 2020-08-22 2020-11-06 贵州元亨利农业科技开发有限公司 A classified screening ware for tuber of hyacinth bletilla crocus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204457724U (en) * 2015-03-10 2015-07-08 陈燕斌 A kind of novel oil-sand filter
CN104178202B (en) * 2014-09-05 2016-02-17 张国柱 Oil-sand extraction and separation technology method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2469326A1 (en) * 2004-05-28 2005-11-28 Ramsis S. Shehata Oil sand conditioning process and apparatus
CA2520821C (en) * 2005-09-23 2012-08-21 Canadian Oil Sands Limited Relocatable oil sand slurry preparation system
DE202007010087U1 (en) * 2007-07-18 2007-09-27 Vemag Maschinenbau Gmbh Cutting set with at least one passage channels having perforated or cutting disc
CN203196859U (en) * 2012-12-24 2013-09-18 江苏贝丽得新材料有限公司 Screening device of pearlescent pigment base materials
CN204182439U (en) * 2014-09-28 2015-03-04 山东鲁润阿胶药业有限公司 A kind of Ah's rubber brick disintegrator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104178202B (en) * 2014-09-05 2016-02-17 张国柱 Oil-sand extraction and separation technology method
CN204457724U (en) * 2015-03-10 2015-07-08 陈燕斌 A kind of novel oil-sand filter

Also Published As

Publication number Publication date
CN107824454A (en) 2018-03-23

Similar Documents

Publication Publication Date Title
CN107824454B (en) Oil sand particle size sieve equipment and use method
US8418856B2 (en) Vibratory screening apparatus
MX2015005323A (en) Shaker with automatic motion.
CN210252531U (en) Quick screening sand device of hydraulic engineering
EP3064074A1 (en) Operation method for strainer
CN115672743B (en) Alloy solid waste raw material pretreatment device for tungsten-nickel alloy processing
GB2277044A (en) Removal of metal particles from drilling mud
CN116944040B (en) Novel ball screening machine
US11065646B2 (en) Sieving apparatus and method of using same
KR20060045128A (en) Sorting and washing apparatus of aggregate suitable to manufacturing of concrete and gathering method of aggregate thereby
CN106733583A (en) A kind of ore pulp fine particle classification screen device and method
KR20140013256A (en) Ball mill and manufacturing method for slurry using the same
CN216323182U (en) Adjustable type grit screening plant
CN110743789B (en) Nearly spherical particle select separately storage device
CN210080014U (en) Material screening device
WO1996008364A1 (en) A method and an apparatus for recovery of drill mud
JPH06322757A (en) Rotary sieve and treatment of mixture of soil and solidifying liquid by use thereof
CN215541692U (en) Automatic grading water recycling device for diamond micro powder
CN217621374U (en) Feeding device is used in production of mirror surface clear water concrete
CN211190952U (en) Sieving mechanism for mining
CN212759657U (en) Asphalt emulsifier raw material screening device
CN215613063U (en) Sesame separation and selection equipment for sesame oil production
CN220738455U (en) Mine material classification equipment
CN221157632U (en) Anti-blocking quartz sand screening device
CN218167732U (en) Shale shaker is used in mining production

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant