CN208390449U - A kind of Split horizontal impeller grader - Google Patents

Abstract

The utility model discloses a kind of Split horizontal impeller grader, including power device, impeller, inner casing, shell, center is held in the power device setting on the shell, and impeller is arranged in upper and lower shape in inner casing bosom position, and inner casing nesting is inside the housing；External wind and powder can be passed through inner casing and carry out classification processing by feed pipe；The setting of bilobed wheel can effectively improve classification processing capacity, promote powder handling quality, and can reduce energy consumption；ALT-CH alternate channel is used cooperatively with intermediate bulkhead, and the powder of first classification processing can be delivered in a short time in secondary grading device, effectively increases classification processing capacity；The utility model has the characteristics that compact-sized, low energy consumption, classification treating capacity is big, high treating effect, after this fission horizontal impeller grader, classification processing can be carried out to powder in the case where consuming energy low, improve classification treatment effeciency, improve powder subdivision quality.

Description

A kind of Split horizontal impeller grader

Technical field

The utility model relates to mining machinery technical field, specially a kind of Split horizontal impeller grader.

Background technique

In power production, gas flow sizing machine is commonly used, its cardinal principle is work of the material in wind-force and centrifugal force It is separated with lower thickness, when the main component impeller of grader is rotated by certain revolving speed, air-flow belongings stream is through between impeller blade When gap, being spilled over compared with coarse granule (because centrifugal force is larger) in material, and relatively fine particle (because centrifugal force is smaller) then enters impeller It is intracavitary, and flow into next link and carry out gas, separate and collect admittedly；The large granular materials being spilled over are settled inside grader, are drawn off； We have found that a kind of phenomenon in practice: when impeller reaches certain rotation at high speed, upper impeller is not entered the wind to impeller internal, and It is outside outlet air；The only impeller lower part entered the wind to impeller internal；The phenomenon illustrates when wheel speed is higher, into impeller cavity The air-flow of body is divided into two parts, and a part enters next link by impeller outlet, and another part is between the blade of upper impeller Clearance flow goes out；Therefore in this classification process, the partial particulate into impeller is directed to upper impeller and flows out with air-flow, flows out Air-flow flow into impeller internal again from impeller lower part, so flow into and out, form the recycle stream an of gas, solid two-phase；It is this Recycle stream may be considered the local eddy currents formed in classification process；As wheel speed improves again, the flow pass meeting on top It broadens, and flows into the channel narrows of impeller, that is, participate in the flow increase of vortex；When wheel speed reduce when, the phenomenon by Fade mistake；The phenomenon is obvious when impeller is long, diameter is bigger；Currently, what is occurred during impeller dry classification is this existing As not referring to or explaining in relevant industries, technical literature, we are during air current classifying, when impeller high speed rotation, The phenomenon that air-flow is flowed back from upper impeller again after entering in impeller from wheel bottom is called backflow phenomenon；It follows that returning The material particles flowed out are actually the classification that have passed through impeller, have had reached certain fineness, have only gone out with respect to impeller The material of mouth outflow is thicker；If the feed separation for participating in reflux is come out or valuable, available different grain thus The two-stage thinner product of degree.And in actual production, when stock grading is at two-stage thinner product, need using two-stage grader string The technique of connection, there are complex process, and equipment investment is big, and energy consumption is big, handle small, low efficiency.

Utility model content

The purpose of the utility model is to provide a kind of Split horizontal impeller graders, with compact-sized, low energy consumption, classification The characteristics for the treatment of capacity is big, high treating effect, can be in the case where energy consumption be low to powder after this fission horizontal impeller grader Classification processing is carried out, classification treatment effeciency is improved, powder subdivision quality is improved, solves deficiency in the prior art.

To achieve the above object, the utility model provides the following technical solutions: a kind of Split horizontal impeller grader, including Center is held in power device, impeller, inner casing, shell, the power device setting on the shell, and impeller is arranged in upper and lower shape Inner housing inner middle position, inner casing nesting is inside the housing；The power device includes motor, speed reducer, shaft, the electricity Motivation is arranged in speed reducer upper end, and speed reducer lower end is fixedly connected with upper shell middle position, and shaft is vertically mounted on inner casing Inside, and shaft upper end is fixedly connected with the output shaft of speed reducer；The shell is hollow cylindrical, and is opened in shell circumference Equipped with multiple through-holes；The inner casing is irregular hollow cylindrical, is fixedly connected on the outside of inner casing with shell inside, inner casing upper end one Side is provided with discharge port, and the discharge port left end is connected to and in communication with inner casing upper end, and right end passes through shell side, inner casing left side Middle position is provided with discharge nozzle, and the discharge nozzle is connected to and in communication on the outside of inner casing and shell inside, inner casing right side middle position It is provided with ALT-CH alternate channel, the ALT-CH alternate channel is semiarc shape, and left side passes through shell and is connected to and in communication with inner casing, inner casing lower part peace Equipped with discharge bucket, middle position is provided with feed pipe on the left of the discharge bucket, and the feed pipe left end passes through shell and goes out Hopper side is connected to and in communication with；The impeller includes one stage impeller, sencond stage impeller, and the one stage impeller is arranged on the downside of inner casing interior Portion, center and shaft lower end are cooperatively connected, and the upper end of inner casing inner primary impeller, sencond stage impeller is arranged in sencond stage impeller Center and shaft be cooperatively connected；Intermediate bulkhead, the centre are additionally provided between the one stage impeller and sencond stage impeller Partition is inclined to set, and is fixedly connected on the inside of circumference and inner casing, and shaft passes through intermediate bulkhead center and level-one leaf Wheel connection.

Preferably, the upper end of the inner casing is cone cylinder shape.

Preferably, the impeller uses the straight impeller of cylindrical-shaped structure.

Part is not directed in the device to be the same as those in the prior art or can be realized by using the prior art.

Compared with prior art, the beneficial effects of the utility model are as follows: a kind of Split horizontal impeller grader, feed pipe External wind and powder can be passed through inner casing and carry out classification processing by road；The setting of bilobed wheel can effectively improve classification processing capacity, mention Powder handling quality is risen, and energy consumption can be reduced；ALT-CH alternate channel is used cooperatively with intermediate bulkhead, can be by first classification processing Powder is delivered in a short time in secondary grading device, effectively increases classification processing capacity；The utility model has structure It compact, the characteristics of low energy consumption, classification treating capacity is big, high treating effect, after this fission horizontal impeller grader, can consume energy Classification processing is carried out to powder in the case where low, improves classification treatment effeciency, improves powder subdivision quality.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon.

Fig. 1 is a kind of overall structure half-section diagram of Split horizontal impeller grader；

Fig. 2 is a kind of schematic top plan view of Split horizontal impeller grader.

Figure label explanation: 1 it is motor, 2 is speed reducer, 3 is inner casing, 4 is discharge port, 5 is ALT-CH alternate channel, 6 is Spacing board, 7 be shaft, 8 be feed pipe, 9 be discharge bucket, 10 be shell, 11 be discharge nozzle, 12 be sencond stage impeller, 13 be one Grade impeller.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

A kind of Split horizontal impeller grader referring to FIG. 1-2, including power device, impeller, inner casing 3, shell 10, institute Power device setting is stated in 10 upper end center position of shell, impeller is arranged in upper and lower shape in 3 bosom position of inner casing, inner casing 3 It is nested in inside shell 10；The power device includes motor 1, speed reducer 2, shaft 7, and the setting of motor 1 is being slowed down 2 upper end of machine, 2 lower end of speed reducer are fixedly connected with 10 upper end middle position of shell, and shaft 7 is vertically mounted on inside inner casing 3, and are turned 7 upper end of axis is fixedly connected with the output shaft of speed reducer 2；The shell 10 is hollow cylindrical, and is opened up in 10 circumference of shell There are multiple through-holes；The inner casing 3 is irregular hollow cylindrical, the outside of inner casing 3 be fixedly connected on the inside of shell 10, on inner casing 3 End side is provided with discharge port 4, and 4 left end of discharge port is connected to and in communication with 3 upper end of inner casing, and right end passes through shell 10 1 Side, 3 left side middle position of inner casing are provided with discharge nozzle 11, and the discharge nozzle 11 is connected to and in communication in 3 outside of inner casing and shell 10 Side, 3 right side middle position of inner casing are provided with ALT-CH alternate channel 5, and the ALT-CH alternate channel 5 is semiarc shape, left side pass through shell 10 with Inner casing 3 is connected to and in communication with, and 3 lower part of inner casing is equipped with discharge bucket 9, and the 9 left side middle position of discharge bucket is provided with feed pipe 8,8 left end of feed pipe passes through shell 10 and is connected to and in communication with 9 side of discharge bucket；The impeller include one stage impeller 13, Sencond stage impeller 12, the setting of one stage impeller 13 are cooperatively connected in 3 lower inner part of inner casing, center and 7 lower end of shaft, and two The upper end of 3 inner primary impeller 13 of inner casing is arranged in grade impeller 12, and the center of sencond stage impeller 12 and shaft 7 are cooperatively connected； Intermediate bulkhead 6 is additionally provided between the one stage impeller 13 and sencond stage impeller 12, the intermediate bulkhead 6 is inclined to set, circle It is fixedly connected on the inside of side and inner casing 3, and shaft 7 passes through 6 center of intermediate bulkhead and connect with one stage impeller 13；The inner casing 3 upper end is cone cylinder shape；The impeller uses the straight impeller of cylindrical-shaped structure.

In summary: a kind of Split horizontal impeller grader starts motor 1, and speed reducer 2 drives shaft 7 to make level-one leaf Wheel 13 and sencond stage impeller 12 rotate, and external wind and powder are passed through inner casing 3, and after 13 classification of one stage impeller processing, bulky grain is from out Hopper 9 is fallen, and the converted channel 5 of little particle powder enters inner casing upper end, then after 12 classification of sencond stage impeller processing, bulky grain warp Discharge nozzle 11 is discharged, and molecule powder is discharged from discharge port 4, completes particle classifying processing；The utility model has structure tight It gathers, the characteristics of low energy consumption, classification treating capacity is big, high treating effect, it, can be low in energy consumption after this fission horizontal impeller grader In the case where classification processing is carried out to powder, improve classification treatment effeciency, improve powder subdivision quality.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms；Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims All changes are embraced therein, and should not treat any reference in the claims as limiting related right It is required that.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (3)

1. a kind of Split horizontal impeller grader, it is characterised in that: including power device, impeller, inner casing, shell, the power Center is held in device setting on the shell, and impeller is arranged in upper and lower shape in inner casing bosom position, and inner casing is nested in shell It is internal；The power device includes motor, speed reducer, shaft, and the motor is arranged in speed reducer upper end, speed reducer lower end It is fixedly connected with upper shell middle position, shaft is vertically mounted on inner housing inner, and the output shaft of shaft upper end and speed reducer It is fixedly connected；The shell is hollow cylindrical, and offers multiple through-holes in shell circumference；The inner casing is in irregular Hollow round column shape, on the outside of inner casing be fixedly connected on the inside of shell, inner casing upper end side is provided with discharge port, the discharge port left end and Inner casing upper end is connected to and in communication with, and right end passes through shell side, and middle position is provided with discharge nozzle, the discharge nozzle on the left of inner casing It is connected to and in communication on the outside of inner casing on the inside of shell, middle position is provided with ALT-CH alternate channel on the right side of inner casing, and the ALT-CH alternate channel is half Arcuation, left side pass through shell and are connected to and in communication with inner casing, and inner casing lower part is equipped with discharge bucket, interposition on the left of the discharge bucket It installs and is equipped with feed pipe, the feed pipe left end passes through shell and is connected to and in communication with discharge bucket side；The impeller includes One stage impeller, sencond stage impeller, the one stage impeller setting connect in inner casing lower inner part, center and the cooperation of shaft lower end It connects, the upper end of inner casing inner primary impeller is arranged in sencond stage impeller, and the center of sencond stage impeller and shaft are cooperatively connected；It is described Intermediate bulkhead is additionally provided between one stage impeller and sencond stage impeller, the intermediate bulkhead is inclined to set, circumference and inner casing Inside is fixedly connected, and shaft passes through intermediate bulkhead center and connect with one stage impeller.

2. a kind of Split horizontal impeller grader according to claim 1, it is characterised in that: the upper end of the inner casing is cone Tubular.

3. a kind of Split horizontal impeller grader according to claim 1, it is characterised in that: the impeller is using cylindric The straight impeller of structure.