CN213825911U

CN213825911U - Stone powder separation system with secondary separation device

Info

Publication number: CN213825911U
Application number: CN202022005343.0U
Authority: CN
Inventors: 卢园头; 帅学涛; 洪南洲; 陈宗育; 章伟东; 黄弘毅
Original assignee: Fujian Nonnon Technology Co ltd
Current assignee: Fujian Nonnon Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-07-30
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a stone powder separation system with a secondary separation device, which comprises a shell and a dust remover, wherein the bottom of the shell is provided with a powder outlet, the side wall of the shell is provided with an air inlet and an air outlet, and the input end of the dust remover is communicated with the air outlet of the shell; a discharge pipe positioned right below the dust remover is arranged at the bottom of the shell, the lower end of the discharge pipe is connected with a pipe connecting section, the top of the pipe connecting section is provided with a fine powder recovery port, and the fine powder recovery port is communicated with the input end of the dust remover through a fine powder recovery pipe; the lower part of union coupling section is provided with the fine sand and retrieves the mouth, and union coupling section is inside to be divided into the air inlet cavity and the logical material cavity of downward sloping, leads to the material cavity and is in air inlet cavity top, and the fine powder is retrieved the mouth and is retrieved mouthful all intercommunication logical material cavity with the fine sand, and the lower part of logical material cavity link up mutually with the lower part of air inlet cavity, has the air inlet on the union coupling section. Compared with the prior art, the utility model discloses a mountain flour piece-rate system, it passes through the secondary separation, the more effectual mountain flour content of controlling the mechanism sand.

Description

Stone powder separation system with secondary separation device

Technical Field

The utility model relates to a mountain flour splitter field, concretely relates to mountain flour piece-rate system with secondary separation device.

Background

At present, in a common stone dust separator in the market, an air inlet and an air outlet are respectively formed at an inlet of a shell, which is close to stone dust, and the air inlet and the air outlet are arranged oppositely, when the stone dust enters from the inlet, fine sand (i.e. sand grains, the following differences) in the stone dust still falls downwards without being influenced by wind blown from the air inlet, and fine powder in the stone dust is lifted by the wind blown from the air inlet and is discharged from the air outlet, and finally enters a dust remover.

However, by adopting the structure, sand grains and fine powder in the stone powder can be separated, the structure is simple, the operation is convenient, but after the structure is adopted, because the time of staying the stone powder in the separator is short, and the movement tracks of the stone powder are basically the same, a small amount of fine powder still enters the stone powder separator together with the sand grains, and is discharged together with the discharge port of the stone powder separator, the separation is not thorough, the content of the stone powder in the manufactured sand cannot be effectively controlled (namely the content of the fine powder in the manufactured sand cannot be effectively controlled), and the finished product sand obtained by discharging cannot meet the required requirements.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mountain flour piece-rate system with secondary separation device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stone dust separation system with a secondary separation device comprises a shell and a dust remover, wherein a powder outlet is formed in the bottom of the shell, an air inlet and an air outlet which are transversely arranged oppositely are formed in the side wall of the shell, the dust remover is positioned at the air outlet, and the input end of the dust remover is communicated with the air outlet of the shell; the bottom of the shell is provided with a discharge pipe which is communicated with the powder outlet and is inclined downwards, the discharge pipe is positioned under the dust remover, the lower end of the discharge pipe is fixedly connected with a pipe connecting section communicated with the lower end part of the discharge pipe, the top of the pipe connecting section is provided with a fine powder recovery port, and the fine powder recovery port is communicated with the input end of the dust remover through a fine powder recovery pipe; the lower part of the pipe connecting section is provided with a fine sand recovery port which is partially communicated with the discharge pipe in an overlapping way and is parallel to the discharge pipe, and the fine sand recovery port is connected with a fine sand recovery pipe with the same inclination angle as the discharge pipe; the inside air inlet cavity and the logical material cavity that divide into the downward sloping of coupling section, it is in to lead to the material cavity the air inlet cavity top, the fine powder retrieve the mouth with fine sand is retrieved the mouth and is all linked together the logical material cavity, the lower part of logical material cavity with the lower part of air inlet cavity link up mutually, and be close to in the mouth is retrieved to fine sand, have on the lateral wall of coupling section one with fine sand is retrieved a mouthful contained angle and is become the right angle, and supplies the air inlet that air inlet cavity level was admitted air, the air inlet is in under the discharging pipe, fine sand retrieve the mouth with contained angle between the lower extreme of discharging pipe with the air inlet with contained angle is the acute angle between the lower extreme of discharging pipe.

Further, the discharging pipe is a flat pipe, a material guide plate which is used for guiding materials obliquely downwards and extends straightly along the lower end of the discharging pipe is arranged in the pipe connecting section, the lower end of the material guide plate is close to the fine sand recovery port and is positioned in a reverse extension area of the fine sand recovery port, and the material guide plate divides the inside of the pipe connecting section into the air inlet chamber and the material passing chamber.

Further, the pipe connecting section comprises a front side plate, a rear side plate, and a first baffle plate, a second baffle plate, a third baffle plate, a fourth baffle plate, a fifth baffle plate and a sixth baffle plate which are arranged between the front side plate and the rear side plate, wherein the first baffle plate is vertically arranged, the second baffle plate is arranged above the first baffle plate and horizontally arranged, the third baffle plate is obliquely and downwardly arranged rightwards, the fourth baffle plate is arranged above the third baffle plate and horizontally arranged, the first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are sequentially connected, the fifth baffle plate and the fourth baffle plate are parallel and are arranged right below the fourth baffle plate, the air inlet is arranged between the fourth baffle plate and the fifth baffle plate, the sixth baffle plate is connected to the left side of the fifth baffle plate and is obliquely and downwardly arranged leftwards, the lower end of the sixth baffle plate is arranged below the lower end of the first baffle plate, the front side plate and the rear side plate are in the same shape, the front side edges and the rear side edges of the first baffle plate, the second baffle plate, the third baffle plate, the fourth baffle plate, the fifth baffle plate and the sixth baffle plate are correspondingly connected with the corresponding edges of the front side plate and the rear side plate, and the fine sand recovery port is arranged between the lower end of the sixth baffle plate and the lower end of the first baffle plate; the fine powder recovery port is positioned on the first baffle, and the lower end of the discharge pipe is vertically connected to the second baffle.

Furthermore, be equipped with the separation adjustment mechanism who is arranged in controlling the air inlet screening in the mountain flour in the casing, the upper end of discharging pipe with install the lock wind discharge valve that is used for controlling the unloading of powder outlet between the powder outlet of casing.

Furthermore, an air inlet guide plate and an air outlet guide plate are arranged in the shell, the air inlet guide plate is positioned below the air inlet, the air outlet guide plate is positioned below the air outlet, and the air inlet guide plate and the air outlet guide plate are movably hinged and installed on the shell in an upward and downward rotating mode; the top of the shell is provided with an air inlet baffle plate with an adjustable angle, and the air inlet baffle plate is positioned in the range of the air inlet; the air inlet guide plate, the air outlet guide plate and the air inlet baffle plate jointly form the separation adjusting mechanism.

Further, the casing includes epitheca and inferior valve, the epitheca with the inferior valve links together, the air intake with the air outlet all is located the well upper portion of epitheca, the air inlet deflector with the air-out deflector is articulated install in the well lower part of epitheca.

Further, the air inlet guide plate and the air outlet guide plate are hinged with the middle lower part of the upper shell through corresponding handles respectively; and a graduated scale for observing the rotation angle of the handle is arranged on the outer wall of the upper shell at a position corresponding to the handle.

Furthermore, fixedly connected with is a plurality of convenient on the outer wall of inferior valve the fixed ear of casing is fixed, and is a plurality of fixed ear all is located the well upper portion of inferior valve, and follows inferior valve circumference is equidistant to be arranged, each all has the through-hole on the fixed ear.

Further, the fine powder recovery pipe becomes vertical setting, the fine powder recovery mouth with be connected with the first governing valve that is used for controlling the fine powder recovery volume between the fine powder recovery pipe, be connected with the intake pipe on the air inlet, the air inlet with install the second governing valve that is used for controlling the intake rate between the intake pipe, be provided with the grid board that admits air in the air inlet, the grid board that admits air has the flat ventiduct of multichannel on the grid board.

The utility model has the advantages that:

the air inlet of the shell is connected with a powder inlet pipeline, the powder inlet pipeline is a pipeline for removing powder and collecting dust of a machine-made sand system, a large amount of fine sand and fine powder (namely stone powder of machine-made sand) are directly introduced into the shell through the powder inlet pipeline, and the dust remover performs suction work to screen the stone powder entering the shell for the first time to obtain secondary stone powder falling into the shell. The secondary mountain flour passes through the discharging pipe speed reduction and glides to the union coupling section in, because the lower part of union coupling section is provided with and communicates with each other with the partial coincide of discharging pipe to fine sand recovery mouth parallel with the discharging pipe, and union coupling section inside is divided into air inlet cavity and the logical material cavity of downward sloping, leads to the material cavity and is in air inlet cavity top, fine powder recovery mouth with fine sand recovery mouth all communicates the logical material cavity, and the lower part of logical material cavity link up with the lower part of air inlet cavity mutually to be close to fine sand recovery mouth, have on the lateral wall of union coupling section one with fine sand recovery mouth contained angle becomes the right angle, and the air inlet that supplies air inlet cavity level to admit air, has the fine powder recovery mouth on the top of union coupling section, and the fine powder recovery mouth communicates with each other through the air-supply pipe of fine powder recovery pipe with the dust remover. Therefore, the secondary stone powder is communicated with the air inlet chamber and the material passing chamber between the lower part of the material passing chamber and the fine sand recycling port, fine powder in sand is sucked into the air inlet pipe of the dust remover at the moment, the purpose of separating a small amount of fine powder in the fine sand again is achieved, the fine powder removing operation in the fine sand is further achieved (namely, the fine sand purification effect is achieved by separating the fine sand from the small amount of fine powder for the second time), and the stone powder content of the control sand is more effectively controlled (namely, the fine powder content in the fine sand is controlled). And the fine sand meeting the required requirements is discharged from a fine sand recovery pipe which is connected with the fine sand recovery port and has the same inclination angle with the discharge pipe. Meanwhile, a small amount of fine powder in the fine sand is effectively and uniformly recovered, dust pollution is effectively avoided, and the method is more beneficial to environmental protection. Therefore, the utility model relates to a mountain flour piece-rate system with secondary separation device through the secondary separation, the more effectual mountain flour content of controlling the mechanism sand.

Drawings

For ease of illustration, the present invention is described in detail by the following detailed description and accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure:

a shell-1; a powder inlet pipeline-2; a dust remover-3; an air inlet pipe-31; a dust removal collection bin-32; a discharge pipe-4; locking air and discharging a valve-5; a pipe connection section-6; a material guide plate-61; an air inlet-62; a fine powder recovery port-63; a fine sand recovery pipe-7; a fine powder recovery pipe-8; a graduated scale-9; an air inlet guide plate-01; an air outlet guide plate-02; an air inlet baffle-03; a fixing lug-10; a first regulating valve-11; a second regulating valve-12.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

As shown in figure 1, the utility model discloses a mountain flour piece-rate system with secondary separation device, including casing 1 and dust remover 3, the bottom of casing 1 is equipped with out the powder mouth, the lateral wall of casing 1 is equipped with air intake and the air outlet of horizontal relative setting. The dust remover 3 is positioned at the air outlet, and the input end of the dust remover 3 is communicated with the air outlet of the shell 1; the dust remover 3 is arranged on the left side of the shell 1, the air inlet of the shell 1 is connected with the powder inlet pipeline 2, the powder inlet pipeline 2 is a pipeline for removing and collecting powder of a machine-made sand system, a large amount of fine sand and fine powder are directly introduced from the air inlet through the powder inlet pipeline 2, so that the dust remover performs air suction work, and the stone powder entering the shell is screened for the first time to obtain secondary stone powder falling into the shell. The bottom of the shell 1 is provided with a discharge pipe 4 which is communicated with the powder outlet and is inclined downwards, the discharge pipe 4 is positioned under the dust remover 3, the lower end of the discharge pipe 4 is fixedly connected with a pipe connecting section 6 communicated with the lower end part of the discharge pipe 4, the top of the pipe connecting section 6 is provided with a fine powder recovery port 63, and the fine powder recovery port 63 is communicated with the input end of the dust remover 3 through a fine powder recovery pipe 8; the lower part of the pipe connecting section 6 is provided with a fine sand recycling port which is partially overlapped and communicated with the discharging pipe 4 and is parallel to the discharging pipe 4, so that the discharging of the discharging pipe 4 can not directly guide materials into the pipe connecting section 6, the materials can only be obliquely and downwards thrown to impact the side wall of the pipe connecting section 6 and then fall into the fine sand recycling port, and the material passing path of the pipe connecting section 6 is prolonged, so that the winnowing and the screening are more facilitated. The fine sand recovery port is connected with a fine sand recovery pipe 7 with the same inclination angle as the discharge pipe 4; the interior of the pipe connecting section 6 is divided into an air inlet chamber and a material passing chamber which are inclined downwards, the material passing chamber is positioned above the air inlet chamber, the fine powder recovery port 63 and the fine sand recovery port are communicated with the material passing chamber, the lower part of the material passing chamber is communicated with the lower part of the air inlet chamber and is close to the fine sand recovery port, the side wall of the pipe connecting section 6 is provided with an air inlet 62 which forms a right angle with the fine sand recovery port and supplies the air inlet chamber to horizontally enter air, thus when the dust remover 3 works, the air inlet suction is generated through the fine powder recovery pipe 8, the air introduced into the air inlet chamber and the fine sand scattered to the fine sand recovery port through the fine sand recovery chamber intersect with each other, a small amount of fine powder floating upwards in secondary stone powder passes through the fine powder recovery port 63 on the top of the pipe connecting section 6 and depends on the fine powder recovery pipe 8, is sucked into the dust remover 3 along with the air inlet suction of the dust remover 3. The air inlet 62 is located under the discharge pipe 4, an included angle between the fine sand recovery port and the lower end of the discharge pipe 4 and an included angle between the air inlet 62 and the lower end of the discharge pipe 4 are acute angles, and the angle is set mainly for better intersection of secondary stone powder and air suction of the dust remover 3, so that a small amount of fine powder in the secondary stone powder after winnowing screening floats upwards, and meanwhile, a small amount of fine powder after separation is smoothly discharged. Specifically, the air inlet 62 may be natural air or a small blower. In other words, the air inlet 62 may be oversized as desired. Adopt above-mentioned structure setting, simple, the separation effect is good and stable, through secondary separation, the more effective stone powder content of controlling the mechanism sand. The arranged pipe connecting section 6 mainly realizes the second separation, further removes a small amount of fine powder in the control mechanism sand, and more effectively controls the stone powder content of the control mechanism sand. And a small amount of fine powder after removal is collected by the air inlet pipe 31 of the dust remover 3, so that the fine powder is effectively and uniformly recovered and treated, dust pollution is effectively avoided, and the dust remover is more beneficial to environmental protection.

In this embodiment, discharging pipe 4 is the flat tube, can let the interior exhaust secondary mountain flour of casing evenly scatter and slowly fall like this, is favorable to more through the secondary separation of union coupling section 6, realizes that fine sand and fine powder separate more thoroughly. The pipe connecting section is internally provided with a material guide plate 61 which is used for guiding materials obliquely downwards and extends straightly along the lower end of the discharging pipe 4, the lower end of the material guide plate 61 is close to the fine sand recovery port and is positioned in a reverse extension area of the fine sand recovery port, and the material guide plate 61 divides the inside of the pipe connecting section into the air inlet cavity and the material passing cavity.

In this embodiment, the pipe connecting section 6 includes a front side plate, a rear side plate, and a first baffle plate, a second baffle plate, a third baffle plate, a fourth baffle plate, a fifth baffle plate, and a sixth baffle plate which are disposed between the front side plate and the rear side plate, the first baffle plate is disposed vertically, the second baffle plate is disposed above the first baffle plate and disposed horizontally, the third baffle plate is disposed obliquely downward to the right, the fourth baffle plate is disposed above the third baffle plate and disposed horizontally, the first baffle plate, the second baffle plate, the third baffle plate, and the fourth baffle plate are sequentially connected, the fifth baffle plate is parallel to the fourth baffle plate and disposed directly below the fourth baffle plate, the air inlet 62 is disposed between the fourth baffle plate and the fifth baffle plate, the sixth baffle plate is connected to the left side of the fifth baffle plate and disposed obliquely downward to the left, the lower end of the sixth baffle plate is disposed below the lower end of the first baffle plate, the front side plate and the rear side plate are in the same shape, the front side edges and the rear side edges of the first baffle plate, the second baffle plate, the third baffle plate, the fourth baffle plate, the fifth baffle plate and the sixth baffle plate are correspondingly connected with the corresponding edges of the front side plate and the rear side plate, and the fine sand recovery port is arranged between the lower end of the sixth baffle plate and the lower end of the first baffle plate; the fine powder recovery port 63 is positioned on the first baffle plate, the lower end of the discharge pipe 4 is vertically connected with the second baffle plate, and a hole in the pipe connecting section 6 for introducing the discharge of the discharge pipe 4 is formed in the second baffle plate. By adopting the structure, the pipe connecting section 6 is simple and unique in shape, the positions of the openings are more reasonable and unique, the separation effect is good and stable, and the stone powder content of the control sand is more effectively controlled by secondary separation.

In this embodiment, be equipped with in casing 1 and be used for controlling the fine sand in the mountain flour not influenced by the wind that the air intake blows in and still drop the separation adjustment mechanism in casing 1 downwards, the bottom of casing 1 is installed with a powder mouth intercommunication and to left decurrent discharging pipe 4, the upper end of discharging pipe 4 with install the lock wind discharge valve 5 of isolated air and control a powder mouth unloading between the powder mouth of casing 1, lock wind discharge valve 5 here chooses for use current, and direct purchase obtains.

In this embodiment, an air inlet guide plate 01 located below the air inlet and an air outlet guide plate 02 located below the air outlet are arranged in the housing 1, and the air inlet guide plate 01 and the air outlet guide plate 02 are both movably hinged and mounted on the housing 1 in an upward and downward rotating manner; an air inlet baffle 03 with an adjustable angle is arranged at the top of the shell 1, and the air inlet baffle 03 is positioned in the range of an air inlet of the shell 1; the air inlet guide plate 01, the air outlet guide plate 02 and the air inlet baffle 03 jointly form the separation adjusting mechanism. Specifically, the epitheca is the shell of cylindric, and the inferior valve is from last conical shell to the convergent, the lower tip of this shell of cylindric with conical shell upper end links together and communicates each other, and the bottom of conical shell is provided with out the powder mouth. The air inlet and the air outlet are arranged on the middle upper portion of the side wall of the cylindrical shell, the air inlet and the air outlet are arranged oppositely, an air inlet guide plate 01 and an air outlet guide plate 02 are arranged on the inner side wall of the cylindrical shell corresponding to the positions below the air inlet and the air outlet respectively, the air inlet guide plate 01 and the air outlet guide plate 02 are arranged oppositely, the air inlet guide plate 01 and the air outlet guide plate 02 are hinged with the inner side wall of the cylindrical shell through handles respectively, an air inlet baffle 03 with an adjustable angle is arranged at the top end of the cylindrical shell, and the air inlet baffle 03 is located in the range of the powder inlet. Preferably, the cylindrical shell and the conical shell are separately formed and are sealed through a paper gasket and locked through a bolt, so that the air conditioner is mainly convenient to overhaul and replace (namely, the air inlet guide plate 01, the air outlet guide plate 02 and the air inlet baffle plate 03 are overhauled or replaced).

Further, an air outlet on the cylindrical shell is communicated with an air inlet pipe 31 of the dust remover 3, fine powder in the stone powder and a small amount of fine powder in secondary stone powder are uniformly sucked and recovered under the suction effect of the dust remover 3 during working, the fine powder screening and separating effect is good, and the structure is reasonable. Specifically, the existing dust remover 3 is selected, the dust remover 3 is provided with an air inlet pipe 31 and a dust removal collection bin 32 for collecting settled fine powder, the air inlet pipe 31 of the dust remover 3 is communicated with the air outlet of the shell 1, and the dust removal collection bin 32 is positioned on the left side of the air inlet pipe 31 of the dust remover 3 and is communicated with the air inlet pipe 31 of the dust remover 3.

In this embodiment, casing 1 includes epitheca and inferior valve, the epitheca with the inferior valve links together, the air intake with the air outlet all is located the well upper portion of epitheca, air inlet deflector 01 with air-out deflector 02 articulates install in the well lower part of epitheca. Specifically, the air inlet guide plate 01 and the air outlet guide plate 02 can be hinged to the inner side wall of the cylindrical shell respectively, the angle between the plate surface of the air inlet guide plate 01 and the longitudinal section of the cylindrical shell and the angle between the plate surface of the air inlet guide plate 01 and the longitudinal section of the cylindrical shell can be changed by adjusting the air inlet guide plate 01 and the air outlet guide plate 02, and the angle between the plate surface of the air inlet baffle plate 03 and the transverse section of the cylindrical shell can be changed by adjusting the air inlet baffle plate 03.

In this embodiment, the air inlet guide plate 01 and the air outlet guide plate 02 are hinged to the middle lower part of the upper shell through corresponding handles respectively; and a graduated scale 9 for observing the rotation angle of the handle is arranged on the outer wall of the upper shell at a position corresponding to the handle. Specifically, a first handle (shown in the figure) and a second handle (shown in the figure) are respectively hinged to the inner side wall of the cylindrical shell right below the positions of the air inlet and the air outlet, an air inlet guide plate 01 and an air outlet guide plate 02 are respectively fixed on the first handle and the second handle, corresponding plate surfaces of the air inlet guide plate 01 and the air outlet guide plate 02 face the upper end surface of the cylindrical shell, and the air inlet guide plate 01 and the air outlet guide plate 02 can be respectively rotated up and down through the first handle and the second handle so as to adjust an angle between the plate surface of the air inlet guide plate 01 and the longitudinal section of the cylindrical shell and an angle between the plate surface of the air outlet guide plate 02 and the longitudinal section of the cylindrical shell, so that the movement track of fine powder in the stone powder is changed. The first handle and the second handle can be hinged to the inner side wall of the cylindrical shell respectively in a conventional mode, the conventional mode can be realized by a technology that an outward opening window or an inward opening window is positioned at any angle through manual force in life of people, and other common technologies can also be adopted (for example, a rotating shaft on the handle is sleeved with a rubber ring, and the fixing is realized through damping generated by friction between the rubber ring and the outer wall of the upper shell). Further preferably, the graduated scale 9 is fan-shaped, the graduated scale 9 is fixed on the outer wall of the upper shell 1 in a conventional mode, the graduated scale 9 is provided with an arc-shaped through hole parallel to the scale lines, the corresponding first handle and the corresponding second handle are both provided with a guide pillar capable of being inserted into the corresponding arc-shaped through hole, the guide pillar can walk in the arc-shaped through hole in a friction mode when the first handle rotates, so that the first handle and the second handle can be reinforced, and the problem that the first handle and the second handle are not provided with auxiliary supports and are easy to break when rotating is solved.

In this embodiment, fixedly connected with is a plurality of convenient on the outer wall of inferior valve 1 fixed ear 10, and is a plurality of fixed ear 10 all is located the well upper portion of inferior valve, and follows inferior valve circumference equidistant arrangement, each fixed ear 10 all has the through-hole. Adopt above-mentioned structure setting, the fixed ear 10 of setting, the inferior valve of mainly being convenient for passes through the firm installation of bolt and fixes the frame on, and the hoist and mount of being convenient for are dismantled simultaneously, the maintenance of being convenient for.

Preferably, the fine powder recovery pipe 8 is vertically arranged, so that air resistance can be greatly reduced, fine powder can be smoothly introduced into the air inlet pipe 31 of the dust remover 3 along the fine powder recovery pipe 8, and efficiency is improved. The fine powder recovery mouth 63 with be connected with the first governing valve 11 that is used for controlling the fine powder recovery volume between the fine powder recovery pipe 8, be connected with the intake pipe on the air inlet 62, the air inlet 62 with install the second governing valve 12 that is used for controlling the intake rate between the intake pipe, be provided with the grid board that admits air (not given in the picture) in the air inlet 62, the last flat air gap of multichannel that has of grid board that admits air, it is concrete, 12 air gaps have been seted up through conventional mode on the grid board that admits air. Specifically, the first regulating valve 11 and the second regulating valve 12 are conventional valves, and may be manual valves or electric valves.

Preferably, the first regulating valve 11 and the second regulating valve 12 are all electric valves, so that manpower and labor cost can be reduced. By adopting the structure, the arranged first regulating valve 11 and the second regulating valve 12 are convenient for controlling the air inlet quantity and the air outlet quantity of the inlet pipe connecting section 6 according to actual requirements, and the optimal effect of separating a small amount of fine powder in fine sand is achieved. The problems of noise and the like caused by overlarge air inlet volume and air outlet volume of the pipe connecting section 6 are avoided.

The working process of the stone powder separation system of the utility model is as follows:

firstly, the two handles and the air inlet baffle 03 are adjusted manually, so that the angles between the air inlet guide plate 01 and the air outlet guide plate 02 and the longitudinal section of the cylindrical shell are changed, the angles between the air inlet baffle 03 and the transverse section of the cylindrical shell are changed, and when stone powder is blown in from the air inlet of the cylindrical shell along with wind. After the stone powder enters the cylindrical shell, the moving track of fine powder in the stone powder is changed and sand grains in the stone powder collide with the air inlet baffle 03 due to the change of the angles between the air inlet guide plate 01 and the air outlet guide plate 02 and the longitudinal section of the cylindrical shell, the fine powder in the stone powder is sucked into a chamber of the dust remover 3 (namely the dust removal collection bin 32 of the dust remover 3) from the air outlet, and the sand grains in the stone powder fall into the conical shell due to the short time of staying in the cylindrical shell, so that secondary stone powder after primary separation is obtained (namely the secondary stone powder refers to the sand grains of fine sand discharged from the shell and still mixed with a small amount of fine powder).

Secondly, the secondary mountain flour in the sand grains is connected with an air locking discharge valve 5 along with the powder outlet of the conical shell and the discharge pipe 4, the conical shell is communicated and separated from the discharge pipe 4 through the air locking discharge valve 5, and the first fine sand and a large amount of fine powder are separated without influence. The opening size of the air locking discharge valve 5 directly controls the blanking amount of the conical shell. When the secondary stone powder separated for the first time is in the inlet pipe connecting section 6 through the air locking discharge valve 5, the secondary stone powder is divided into an air inlet chamber and a material passing chamber which are inclined downwards through the inside of the pipe connecting section 6, the material passing chamber is positioned above the air inlet chamber, the fine powder recovery port and the fine sand recovery port are both communicated with the material passing chamber, the lower part of the material passing chamber is communicated with the lower part of the air inlet chamber and is close to the fine sand recovery port (namely, a gap is formed between the communicated position of the lower part of the material passing chamber and the lower part of the air inlet chamber and the fine sand recovery port, and the gap is mainly that the secondary stone powder passing through the material passing chamber can only be thrown to the fine sand recovery port in a downward throwing mode). When the dust remover 3 works, the air inlet suction is generated through the fine powder recovery pipe 8, the air introduced into the air inlet chamber and the fine sand thrown to the fine sand recovery port through the material introducing chamber are mutually intersected, a small amount of fine powder passing through the secondary stone powder is floated upwards, the floated fine powder passes through the fine powder recovery port 63 on the top of the pipe connecting section 6, and is sucked and introduced into the dust remover 3 along with the air intake and suction of the dust remover 3 by virtue of the fine powder recovery pipe 8 so as to achieve the purpose of separating a small amount of fine powder in fine sand again, and then the fine powder in the secondary stone powder is fully screened and separated again, so that the further fine powder removal work in the fine sand is realized (namely the fine sand purification effect is realized by separating the secondary fine sand and a small amount of fine powder), and the stone powder content of the control sand is more effectively controlled (namely the fine powder content in the fine sand is controlled), and a pure stone powder finished product (namely pure fine sand) meeting the requirements is obtained. Meanwhile, the fine powder is effectively and uniformly recovered and treated, dust pollution is effectively avoided, and the method is more beneficial to environmental protection. In other words: and (3) removing a large amount of fine powder from the fine sand through primary separation to obtain secondary stone powder (namely, sand particles mixed with a small amount of fine powder still), and blowing and separating the secondary stone powder again through the pipe connecting section 6, wherein the fine powder is blown upwards from the secondary stone powder and is blown into the dust collector 3, so that secondary filtration and separation of the stone powder (namely, further sand particle purification of the secondary stone powder) are realized, and the stone powder content of the control sand is controlled more effectively. The problem that the quality of discharged sand grains is affected due to incomplete separation in one step in the prior art (namely, the problem that the prior art cannot separate a small amount of fine powder again) is solved, and the problem that a small amount of fine powder mixed in the sand grains can enter the dust remover 3 to be collected and cannot be effectively treated is also solved.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims

1. The utility model provides a mountain flour piece-rate system with secondary separation device, includes casing and dust remover, the bottom of casing is equipped with out the powder mouth, the lateral wall of casing is equipped with air intake and the air outlet of horizontal relative setting, the dust remover is in air outlet department, the input of dust remover with the air outlet of casing is linked together its characterized in that: the bottom of the shell is provided with a discharge pipe which is communicated with the powder outlet and is inclined downwards, the discharge pipe is positioned under the dust remover, the lower end of the discharge pipe is fixedly connected with a pipe connecting section communicated with the lower end part of the discharge pipe, the top of the pipe connecting section is provided with a fine powder recovery port, and the fine powder recovery port is communicated with the input end of the dust remover through a fine powder recovery pipe; the lower part of the pipe connecting section is provided with a fine sand recovery port which is partially communicated with the discharge pipe in an overlapping way and is parallel to the discharge pipe, and the fine sand recovery port is connected with a fine sand recovery pipe with the same inclination angle as the discharge pipe;

the inside air inlet cavity and the logical material cavity that divide into the downward sloping of coupling section, it is in to lead to the material cavity the air inlet cavity top, the fine powder retrieve the mouth with fine sand is retrieved the mouth and is all linked together the logical material cavity, the lower part of logical material cavity with the lower part of air inlet cavity link up mutually, and be close to in the mouth is retrieved to fine sand, have on the lateral wall of coupling section one with fine sand is retrieved a mouthful contained angle and is become the right angle, and supplies the air inlet that air inlet cavity level was admitted air, the air inlet is in under the discharging pipe, fine sand retrieve the mouth with contained angle between the lower extreme of discharging pipe with the air inlet with contained angle is the acute angle between the lower extreme of discharging pipe.

2. A stone dust separation system with secondary separation device as claimed in claim 1, wherein: the discharging pipe is a flat pipe, a material guide plate which is used for obliquely guiding materials downwards and extends straightly along the lower end of the discharging pipe is arranged in the pipe connecting section, the lower end of the material guide plate is close to the fine sand recovery port and is positioned in a reverse extension area of the fine sand recovery port, and the material guide plate divides the inside of the pipe connecting section into the air inlet chamber and the material passing chamber.

3. A stone dust separation system with secondary separation device as claimed in claim 1 or 2, wherein: the pipe connecting section comprises a front side plate, a rear side plate, a first baffle plate, a second baffle plate, a third baffle plate, a fourth baffle plate, a fifth baffle plate and a sixth baffle plate, wherein the first baffle plate, the second baffle plate, the third baffle plate, the fourth baffle plate, the fifth baffle plate and the sixth baffle plate are arranged between the front side plate and the rear side plate, the first baffle plate is vertically arranged, the second baffle plate is positioned above the first baffle plate and horizontally arranged, the third baffle plate is obliquely and downwards arranged right, the fourth baffle plate is positioned above the third baffle plate and horizontally arranged, the first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are sequentially connected, the fifth baffle plate is parallel to the fourth baffle plate and is positioned under the fourth baffle plate, the air inlet is arranged between the fourth baffle plate and the fifth baffle plate, the sixth baffle plate is connected to the left side of the fifth baffle plate and is obliquely and downwards arranged left, and the lower end part of the sixth baffle plate is positioned under the lower end part of the first baffle plate, the front side plate and the rear side plate are in the same shape, the front side edges and the rear side edges of the first baffle plate, the second baffle plate, the third baffle plate, the fourth baffle plate, the fifth baffle plate and the sixth baffle plate are correspondingly connected with the corresponding edges of the front side plate and the rear side plate, and the fine sand recovery port is arranged between the lower end of the sixth baffle plate and the lower end of the first baffle plate; the fine powder recovery port is positioned on the first baffle, and the lower end of the discharge pipe is vertically connected to the second baffle.

4. A stone dust separation system with secondary separation device as claimed in claim 1, wherein: the separation adjusting mechanism for controlling air inlet screening in the stone powder is arranged in the shell, and an air locking discharge valve for controlling discharging of the powder outlet is arranged between the upper end of the discharge pipe and the powder outlet of the shell.

5. A stone dust separation system with secondary separation device as claimed in claim 4, wherein: an air inlet guide plate and an air outlet guide plate are arranged in the shell and positioned below the air inlet and the air outlet, and the air inlet guide plate and the air outlet guide plate are movably hinged and installed on the shell in an upward and downward rotating mode; the top of the shell is provided with an air inlet baffle plate with an adjustable angle, and the air inlet baffle plate is positioned in the range of the air inlet; the air inlet guide plate, the air outlet guide plate and the air inlet baffle plate jointly form the separation adjusting mechanism.

6. A stone dust separation system with secondary separation device as claimed in claim 5, wherein: the casing includes epitheca and inferior valve, the epitheca with the inferior valve links together, the air intake with the air outlet all is located the well upper portion of epitheca, the air inlet deflector with the air-out deflector is articulated install in the well lower part of epitheca.

7. A stone dust separation system with secondary separation device as claimed in claim 6, wherein: the air inlet guide plate and the air outlet guide plate are hinged with the middle lower part of the upper shell through corresponding handles respectively; and a graduated scale for observing the rotation angle of the handle is arranged on the outer wall of the upper shell at a position corresponding to the handle.

8. A stone dust separation system with secondary separation device as claimed in claim 6, wherein: fixedly connected with is a plurality of to be used for the convenience on the outer wall of inferior valve the fixed ear of casing is fixed, and is a plurality of fixed ear all is located the well upper portion of inferior valve, and follows inferior valve circumference is equidistant to be arranged, each all has the through-hole on the fixed ear.

9. A stone dust separation system with secondary separation device according to any one of claims 4 to 8, wherein: the fine powder recovery pipe becomes vertical setting, the fine powder recovery mouth with be connected with the first governing valve that is used for controlling the fine powder recovery volume between the fine powder recovery pipe, be connected with the intake pipe on the air inlet, the air inlet with install the second governing valve that is used for controlling the intake rate between the intake pipe, be provided with the grid board that admits air in the air inlet, the grid board that admits air has the flat air gap of multichannel on the grid board.