CN215524114U

CN215524114U - Device for improving material accumulation of air inlet cavity of dryer

Info

Publication number: CN215524114U
Application number: CN202120916874.7U
Authority: CN
Inventors: 施兵; 宋春勇; 冒洋洋; 艾闯; 宋文华
Original assignee: Jiangsu Pioneer Environmental Material Co ltd
Current assignee: Jiangsu Pioneer Environmental Material Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-01-14
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to a device for improving material accumulation of an air inlet cavity of a dryer, wherein the crushing dryer comprises a crushing mechanism, a drying mechanism, a grading mechanism, a feeding mechanism and a discharging mechanism, the drying mechanism comprises an air inlet cylinder, an air inlet and an air suction opening, air cutting plates are arranged in the air inlet, a plurality of air cutting plates are distributed in the air inlet in parallel, a gap for allowing hot air to pass is reserved between the adjacent air cutting plates, the air cutting plates are obliquely arranged in the air inlet, and the air cutting plates are tangent to the air inlet direction of the air inlet; the air inlet cylinder is in a round table shape, and the size of the upper bottom of the air inlet cylinder is larger than that of the lower bottom of the air inlet cylinder. The utility model has the advantages that: through addding the air-cutting plate to the air inlet section of thick bamboo of cooperation round platform form to make hot-blast form a spiral helicine air current after getting into the air inlet section of thick bamboo from the air intake, thereby adopt the dynamics that this kind of special air current increased the air current, reduced the material and fallen into the air inlet cavity from the screen cloth, can effectually avoid the material accumulation in the air inlet cavity.

Description

Device for improving material accumulation of air inlet cavity of dryer

Technical Field

The utility model relates to the field of material crushing and drying, in particular to a device for improving material accumulation of an air inlet cavity of a dryer.

Background

At present, in many occasions, the granularity of materials has certain requirements, the materials with relatively large granularity need to be crushed and then dried to obtain the materials with the required granularity, and the process needs to use a crusher, a dryer and a classifier or a powder sieving machine to respectively complete different process requirements, which inevitably causes the defects of long process flow, more equipment, large floor area, more energy consumption, long working time and high cost, and sometimes the quality of products is difficult to ensure.

In view of the above phenomenon, CN95239883.4 discloses a powerful pulverizing dryer, which comprises a pulverizing mechanism including a pulverizing shaft, a bearing, a pulverizing disk, a hammer shaft, a pulverizing hammer and a pulverizing barrel, a drying mechanism including an air inlet and an air suction opening, a classifying mechanism including a classifying barrel, a classifier, a classifying shaft, a bearing and a blade, and a feeding mechanism including a double-screw conveyor, wherein the classifying mechanism is arranged at the upper part of the pulverizing mechanism, and the classifying shaft and the pulverizing shaft are on the same axis; the feeding mechanism is arranged at the side parts of the grading mechanism and the crushing mechanism, and the discharge port of the double-screw conveyor is arranged on the wall between the crushing cylinder and the grading cylinder; the drying mechanism penetrates through the crushing mechanism and the grading mechanism, the air inlet is formed in the wall of the crushing barrel below the crushing disc, the sieve plate is further arranged between the air inlet and the crushing disc, the air suction opening is formed above the classifier, and the outer edge of the upper end of the classifier is provided with the flow guide ring.

Among the above-mentioned equipment, to the design of drying mechanism, its air intake setting is on the section of thick bamboo wall of crushing barrel of crushing dish below to be located the below of sieve, the hot-blast that blows into of air intake needs reentrant crushing barrel behind the sieve promptly, and the cavity between definition air intake and the sieve is the air inlet chamber, and such a design can bring certain problem: although the sieve plate arranged below the crushing disc blocks materials, inevitably, part of the materials drop into the air inlet cavity from the sieve holes of the sieve plate, and after the materials are accumulated for a long time to reach a certain amount, the air inlet amount, the air speed, the free rotation of the rotating part and the like passing through the sieve plate are affected, so that the current is too large, and even the whole drying machine stops working. The cost is increased much if a new device is purchased. Therefore, it is desirable to provide a crushing dryer which can be improved on the original crushing dryer to prevent the materials from being accumulated in the air inlet cavity for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for preventing materials from accumulating in an air inlet cavity of a dryer, which is convenient to transform and can effectively prevent the materials from accumulating in the air inlet cavity.

In order to solve the technical problems, the technical scheme of the utility model is as follows: a device for improving material accumulation of an air inlet cavity of a dryer comprises a crushing mechanism, a drying mechanism, a grading mechanism, a feeding mechanism and a discharging mechanism, wherein the crushing mechanism comprises a crushing shaft, a bearing, a crushing disc, a hammer shaft, a crushing hammer and a crushing barrel, the drying mechanism comprises an air inlet barrel, an air inlet and an air suction opening, the grading mechanism comprises a grading barrel, a grader, a grading shaft, a bearing and blades, the feeding mechanism comprises a double-screw conveyor, the discharging mechanism comprises a discharging bent pipe, a horizontal discharging pipe and a negative pressure fan, the grading mechanism is arranged at the upper part of the crushing mechanism, the grading shaft and the crushing shaft are arranged on the same axis, the feeding mechanism is arranged at the side parts of the grading mechanism and the crushing mechanism, a discharging opening of the double-screw conveyor is arranged on the barrel wall between the crushing barrel and the grading barrel, the drying mechanism penetrates through the crushing mechanism and the grading mechanism, the air inlet barrel is arranged below the crushing barrel, have an air inlet cavity in the air inlet section of thick bamboo, the air intake sets up on the lateral wall of air inlet section of thick bamboo, still is equipped with the sieve between air inlet section of thick bamboo and the crushing dish, and the bottom side of ejection of compact return bend is connected on a hierarchical section of thick bamboo to the setting is in the top of classificator, and the upper end outer fringe of classificator is equipped with the water conservancy diversion circle, and horizontal discharging pipe horizontal connection is at the opposite side of ejection of compact return bend, and negative-pressure air fan connects the opposite side at horizontal discharging pipe, and its innovation point lies in:

the air inlet is internally provided with a plurality of air cutting plates which are distributed in the air inlet in parallel, a gap for hot air to pass through is reserved between the adjacent air cutting plates, the air cutting plates are obliquely arranged in the air inlet, and the air cutting plates are tangent to the air inlet direction of the air inlet;

the air inlet cylinder is in a round table shape, and the size of the upper bottom of the air inlet cylinder is larger than that of the lower bottom of the air inlet cylinder.

Furthermore, the front end of the air cutting plate extends into the air inlet cylinder, and the size of a section of the air cutting plate extending into the air inlet cylinder is larger than the size of the radius of the 1/4 air inlet cylinder.

Furthermore, cut the aerofoil and be right trapezoid shape, and cut the hypotenuse of aerofoil and stretch into to an air inlet section of thick bamboo in, the inclination of the hypotenuse of cutting the aerofoil is unanimous with the tapering of an air inlet section of thick bamboo.

Further, be provided with an angle adjustment mechanism between each air cutting board, angle adjustment mechanism is: the upper side and the lower side of each air cutting plate are hinged to the inner wall of the air inlet, and synchronous swinging is achieved among the air cutting plates through matching of the gear and the rack.

The utility model has the advantages that: according to the utility model, the air cutting plate is additionally arranged and is matched with the circular truncated cone-shaped air inlet cylinder, so that hot air forms spiral air flow after entering the air inlet cylinder from the air inlet, the special air flow is adopted to increase the strength of the air flow, the material is reduced from falling into the air inlet cavity from the screen, meanwhile, the material can pass through the screen again from the air inlet cavity and is sent back into the crushing cylinder, and the material can be effectively prevented from accumulating in the air inlet cavity.

The front end of the air cutting plate extends into the air inlet cylinder, and the size of the air cutting plate extending into the air inlet cylinder is controlled, so that spiral air flow can be formed better; the air cutting plate is designed into a right-angled trapezoid, the inclination of the inclined edge of the air cutting plate is kept consistent with the taper of the air inlet cylinder, and spiral air flow can be formed better.

Through angle adjustment mechanism's setting to can adjust the angle of tangential wind board, with the range of the soon of the wind direction of change, and then change the dynamics of heliciform air current, with the demand that satisfies different operating modes.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural principle diagram of the device for improving the material accumulation of the air inlet cavity of the dryer of the utility model.

Fig. 2 is a top view of the air inlet duct of the present invention.

Fig. 3 is a schematic view of an angle adjusting mechanism according to the present invention.

Detailed Description

The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.

As shown in fig. 1, the device for improving material accumulation in the air inlet cavity of the dryer comprises a crushing mechanism, a drying mechanism, a grading mechanism, a feeding mechanism and a discharging mechanism.

The crushing mechanism comprises a crushing shaft 1, a bearing 2, a crushing disc 3, a hammer shaft 4, a crushing hammer 5 and a crushing barrel 6, the drying mechanism comprises an air inlet barrel 41, an air inlet 7 and an air suction opening 8, the grading mechanism comprises a grading barrel 9, a classifier 10, a grading shaft 11, a bearing 12 and blades 13, the feeding mechanism comprises a double-screw conveyer 14, the discharging mechanism comprises a discharging elbow 15, a horizontal discharging pipe 16 and a negative pressure fan, the grading mechanism is arranged at the upper part of the crushing mechanism, the grading shaft 11 and the crushing shaft 1 are on the same axis, the feeding mechanism is arranged at the side parts of the grading mechanism and the crushing mechanism, a discharging port of the double-screw conveyer 14 is arranged on the barrel wall between the crushing barrel 6 and the grading barrel 9, the drying mechanism penetrates through the crushing mechanism and the grading mechanism, the air inlet barrel 41 is arranged below the crushing barrel 6, an air inlet cavity is arranged in the air inlet barrel 41, the air inlet 7 is arranged on the side wall of the air inlet barrel, a sieve plate 17 is arranged between the air inlet cylinder 41 and the crushing disc, the bottom side of the discharge elbow 15 is connected to the grading cylinder 9 and arranged above the classifier 10, a flow guide ring is arranged at the outer edge of the upper end of the classifier 10, the horizontal discharge pipe 16 is horizontally connected to the other side of the discharge elbow 15, and the negative pressure fan is connected to the other side of the horizontal discharge pipe 16. In this embodiment, the specific structure of the pulverizing dryer is the same as that of the powerful pulverizing dryer in patent CN95239883.4, which is not the improvement point to be explained in the present invention, and therefore, the detailed description thereof is omitted in this embodiment.

As can be seen from the schematic view shown in fig. 2, the air inlet 7 is provided with a plurality of air cutting plates 42, the air cutting plates 42 are distributed in the air inlet 7 in parallel, a gap for allowing hot air to pass through is reserved between adjacent air cutting plates 42, the air cutting plates 42 are obliquely arranged in the air inlet 7, and the air cutting plates 42 are tangential to the air inlet direction of the air inlet 7.

The front end of the air cutting plate 42 extends into the air inlet cylinder, and the size of a section of the air cutting plate extending into the air inlet cylinder 41 is larger than the size of the radius of 1/4 air inlet cylinder 41. The front end of the air cutting plate 42 extends into the air inlet cylinder 41, and the size of the air cutting plate 42 extending into the air inlet cylinder 41 is controlled, so that spiral air flow can be formed better.

The air inlet cylinder 41 is circular truncated cone-shaped, and the size of the upper bottom of the air inlet cylinder 41 is larger than that of the lower bottom of the air inlet cylinder 41.

The air cutting plate 42 is in a right trapezoid shape, the inclined edge of the air cutting plate 42 extends into the air inlet cylinder 41, and the inclination of the inclined edge of the air cutting plate 42 is consistent with the taper of the air inlet cylinder 41. The air cutting plate 42 is designed into a right trapezoid, and the inclination of the oblique side of the air cutting plate 42 is consistent with the taper of the air inlet cylinder 41, so as to better form a spiral air flow.

An angle adjusting mechanism is arranged between the air cutting plates 42, and as can be seen from the schematic diagram shown in fig. 3, the angle adjusting mechanism is: cut the upper and lower both sides of aerofoil 42 and all articulate on the inner wall of air intake 7, all be connected with a articulated shaft 43 in the upper and lower both sides of cutting aerofoil 42, upper and lower both sides at the inner wall of air intake 7 all are provided with one with articulated shaft 43 matched with articulated seat, the recess that holds the embedding of articulated shaft 43 has in articulated seat, articulated shaft 43 directly imbeds in the recess of articulated seat, thereby realized cutting aerofoil 42 and air intake 7 articulated, pass through the gear between each cut aerofoil 42, cooperation between the rack realizes synchronous swing, its cooperation specifically is: one hinge shaft 43 of the air cutting plates 42 penetrates through the air inlet 7 and extends out of the air inlet 7, a gear 44 is connected to the end portion of one side, extending out of the air inlet 7, of the hinge shaft 43, the gear 44 on each air cutting plate 42 is meshed with the same rack 45, a rack mounting plate 47 is arranged on the outer wall of the air inlet 7, the side end of each rack 45 is tightly pressed through a tightening bolt 46, and meanwhile, a threaded through hole allowing the tightening bolt 46 to penetrate is formed in the rack mounting plate 47. Through angle adjustment mechanism's setting to can adjust the angle of tangential wind board 42, with the range of the soon of the wind direction of change, and then change the dynamics of heliciform air current, with the demand that satisfies different operating modes. When adjusting the angle of wind-cutting plate 42, at first loosen jack bolt 46, then according to the angle that wind-cutting plate 42 needs to be adjusted, pulling or pushing rack 45, the removal through rack 45 drives each gear 4 and carries out synchronous syntropy and rotate, and then has realized the swing of each wind-cutting plate 42, after adjusting to target in place, tighten jack bolt 46 again for the tip of jack bolt 46 pushes up on rack 45, avoid at the during operation, because of blowing wind-cutting plate 42 with hot-blast and lead to wind-cutting plate 42's inclination to change.

The working principle is as follows: when drying, hot air enters from the air inlet 7, at the same time, the air supply direction of the hot air is consistent with the axial direction of the air inlet 7, when the hot air passes through the inclined air cutting plate 42, the air inlet direction of the hot air is changed due to the blocking effect of the air cutting plate 42, the hot air enters the air inlet cylinder 41 along the side wall of the air cutting plate 42 and flows along the inner wall of the air inlet cylinder 41, and the hot air flows along the conical inner wall of the air inlet cylinder 41 due to the circular truncated cone-shaped structure of the air inlet cylinder 41, so that spiral hot air is gradually formed, and the spiral hot air passes through the sieve plate 17 and blows materials upwards.

According to the device for improving the material accumulation of the air inlet cavity of the dryer, the air cutting plate 42 is additionally arranged and is matched with the circular truncated cone-shaped air inlet cylinder 41, so that hot air forms spiral air flow after entering the air inlet cylinder 42 from the air inlet 7, the strength of the air flow is increased by adopting the special air flow, the material is reduced from falling into the air inlet cavity from the screen, meanwhile, the material can pass through the screen again from the air inlet cavity and is sent back to the crushing cylinder, and the material accumulation in the air inlet cavity can be effectively avoided.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A device for improving material accumulation of an air inlet cavity of a dryer comprises a crushing mechanism, a drying mechanism, a grading mechanism, a feeding mechanism and a discharging mechanism, wherein the crushing mechanism comprises a crushing shaft, a bearing, a crushing disc, a hammer shaft, a crushing hammer and a crushing barrel, the drying mechanism comprises an air inlet barrel, an air inlet and an air suction opening, the grading mechanism comprises a grading barrel, a grader, a grading shaft, a bearing and blades, the feeding mechanism comprises a double-screw conveyor, the discharging mechanism comprises a discharging bent pipe, a horizontal discharging pipe and a negative pressure fan, the grading mechanism is arranged at the upper part of the crushing mechanism, the grading shaft and the crushing shaft are arranged on the same axis, the feeding mechanism is arranged at the side part of the grading mechanism and the crushing mechanism, a discharging opening of the double-screw conveyor is arranged on the barrel wall between the crushing barrel and the grading barrel, and the drying mechanism penetrates through the crushing mechanism and the grading mechanism, an air inlet section of thick bamboo sets up in the below of smashing a section of thick bamboo, an air inlet cavity has in the air inlet section of thick bamboo, the air intake sets up on the lateral wall of an air inlet section of thick bamboo, still be equipped with the sieve between an air inlet section of thick bamboo and the crushing dish, the bottom side of ejection of compact return bend is connected on hierarchical section of thick bamboo, and set up the top at the classificator, the upper end outer fringe of classificator is equipped with the water conservancy diversion circle, horizontal discharging pipe horizontal connection is at the opposite side of ejection of compact return bend, negative-pressure air fan connects the opposite side at horizontal discharging pipe, its characterized in that: the air inlet is internally provided with a plurality of air cutting plates which are distributed in the air inlet in parallel, a gap for hot air to pass through is reserved between the adjacent air cutting plates, the air cutting plates are obliquely arranged in the air inlet, and the air cutting plates are tangent to the air inlet direction of the air inlet; the air inlet cylinder is in a round table shape, and the size of the upper bottom of the air inlet cylinder is larger than that of the lower bottom of the air inlet cylinder.

2. The device for improving the material accumulation of the air inlet cavity of the dryer as claimed in claim 1, wherein: the front end of the air cutting plate extends into the air inlet cylinder, and the size of a section of the air cutting plate extending into the air inlet cylinder is larger than the size of the radius of the 1/4 air inlet cylinder.

3. The device for improving the material accumulation of the air inlet cavity of the dryer as claimed in claim 1, wherein: cut the aerofoil to be right trapezoid shape, and cut the hypotenuse of aerofoil and stretch into to the air inlet section of thick bamboo in, the inclination of the hypotenuse of cutting the aerofoil is unanimous with the tapering of an air inlet section of thick bamboo.

4. The device for improving the material accumulation of the air inlet cavity of the dryer as claimed in claim 1, wherein: each air cutting plate is provided with an angle adjusting mechanism, and the angle adjusting mechanism is as follows: the upper side and the lower side of each air cutting plate are hinged to the inner wall of the air inlet, and synchronous swinging is achieved among the air cutting plates through matching of the gear and the rack.