CN215893092U

CN215893092U - Concrete gravel drying device

Info

Publication number: CN215893092U
Application number: CN202121422250.6U
Authority: CN
Inventors: 宋心; 王建华; 周帅平; 赵军伟; 徐金凤
Original assignee: Shaanxi Hengsheng Concrete Co ltd
Current assignee: Shaanxi Hengsheng Concrete Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-02-22
Anticipated expiration: 2031-06-24

Abstract

The application relates to a concrete gravel drying device which comprises a drying cylinder, a feeding component, a discharging component, a drying component and a screening component, wherein the feeding component is arranged on the top wall of the drying cylinder and communicated with an inner cavity of the drying cylinder; the screening component comprises a rotating shaft, a rotating motor and at least two screening disks which are sequentially and coaxially arranged on the rotating shaft along the axial direction, the rotating shaft coaxially extends into the drying cylinder and is rotatably connected with the drying cylinder, the side wall of each screening disk is rotatably connected with the inner wall of the drying cylinder, the rotating motor is fixed on the bottom wall of the drying cylinder, and a piston rod of the rotating motor is coaxially connected with the rotating shaft; the feeding assembly is arranged on the drying cylinder and is used for conveying the raw materials on the sieve tray out of the drying cylinder. The method and the device are convenient for directly using all raw materials after screening, and simplify the step of reusing the raw materials.

Description

Concrete gravel drying device

Technical Field

The application relates to the field of concrete mixing plant equipment, in particular to a concrete gravel drying device.

Background

Concrete is the base material that building field is commonly used, and during concrete manufacturing, concrete production equipment can produce a large amount of sewage that has the grit after wasing, after screening and blowdown to most moisture in the sewage, can form a large amount of grit mud that is formed by grit, cement and water, and direct emission can the polluted environment, blocks up the sewage pipes, also can cause the waste of grit raw materials simultaneously.

The Chinese patent application with the application number of CN201020228323.3 discloses a steam type mining sandstone drying machine, which comprises a drying chamber, wherein the upper part of one end of the drying chamber is provided with a feeding hole, and the bottom of the other end of the drying chamber is provided with a discharging hole; the drying chamber is provided with a heating chamber outside, the heating chamber is provided with a steam inlet, the drying chamber and the heating chamber are closed at two ends, the inner wall of the heating chamber is the outer wall of the drying chamber, a rotating shaft is arranged in the drying chamber, a sand-casting device is arranged on the rotating shaft, the sand-casting device is a shoveling plate and is a spiral propeller, the drying machine is of an inclined structure, and the feed port end of the drying chamber is higher than the discharge port end; the upper part of the drying chamber is provided with an air suction opening which is positioned at the inner side of the feeding hole, and the heating chamber is coated with a heat insulation layer. The power equipment is connected with the rotating main shaft, steam is connected to the air inlet end of the heating chamber through a pipeline, then wet sand is added into the dryer, the wet sand enters the drying chamber, the outer wall of the drying chamber is heated, moisture in the wet sand is rapidly volatilized under the stirring of the founding device, and water vapor is pumped out through the air suction opening to accelerate the drying process of the wet sand.

In view of the above-mentioned related technologies, the inventor believes that when the sand-gravel slurry is dried, various raw materials in the sand-gravel slurry cannot be distinguished, and cannot be used directly, and the sand-gravel slurry needs to be screened after being dried.

SUMMERY OF THE UTILITY MODEL

In order to facilitate can directly use each raw materials after the screening, this application provides a concrete grit drying device.

The application provides a pair of concrete grit drying device adopts following technical scheme:

a concrete gravel drying device comprises a drying cylinder, a feeding assembly, a discharging assembly, a drying assembly and a screening assembly, wherein the feeding assembly is arranged on the top wall of the drying cylinder and communicated with an inner cavity of the drying cylinder; the screening assembly comprises a rotating shaft, a rotating motor and at least two screening disks which are sequentially and coaxially arranged on the rotating shaft along the axial direction, the rotating shaft coaxially extends into the drying cylinder and is rotatably connected with the drying cylinder, the side wall of each screening disk is rotatably connected with the inner wall of the drying cylinder, the rotating motor is fixed on the bottom wall of the drying cylinder, and a piston rod of the rotating motor is coaxially connected with the rotating shaft; the feeding assembly is arranged on the drying cylinder and is used for conveying the raw materials on the sieve tray out of the drying cylinder.

By adopting the technical scheme, when the sand and stone slurry is dried, the drying component is opened in advance, the inner cavity of the drying cylinder is heated, then the sand and stone slurry is sent into the drying cylinder along the top wall of the drying cylinder through the feeding component and falls on the sieve tray, the sand and stone slurry larger than the sieving particle size of the sieve tray is left on the sieve tray, the rest raw materials fall down and continue to be sieved until the slurry falls on the bottom wall of the drying cylinder, the rotating motor is started simultaneously, the output shaft of the rotating motor drives the rotating shaft and the sieve tray on the rotating shaft to rotate, and the raw materials on the sieve tray rotate along with the sieve tray to be dried; the pivot of setting, rotation motor and screen tray can sieve and the layering is dried the grit mud that gets into in the section of thick bamboo of drying, and the grit mud also can be dried at the in-process that descends, increases the area of contact of air in raw materials and the drying bucket, is convenient for improve drying efficiency, can obtain the raw materials that the screening finishes simultaneously to collect through ejection of compact subassembly, can directly use the raw materials after having dried, retrench the step, raise the efficiency.

Optionally, the screening component further comprises a stirring paddle, the stirring paddle is fixedly arranged on the part, extending into the inner cavity of the drying cylinder, of the rotating shaft, and is close to one end of the bottom wall of the drying cylinder.

Through adopting above-mentioned technical scheme, the stirring rake of setting can stir the mud of stoving chamber bottom chamber, increases the area of contact of hot air in mud and the section of thick bamboo of drying, improves stoving speed and efficiency.

Optionally, the screening subassembly still includes a plurality of material nets of hanging, it sets up and is being close to hang the material net the sieve tray diapire of stirring rake one end, hang the crisscross distribution of material net along the pivot axial, and be close to sieve tray lateral wall sets up.

Through adopting above-mentioned technical scheme, the material net of hanging that sets up for the mud that splashes during the stirring is attached to hanging the material net on, and the contact time of hot air in extension mud and the drying cylinder can rotate simultaneously with the sieve tray, is convenient for get rid of mud from hanging the material net, avoids mud to attach to hanging the material net on.

Optionally, one end, far away from the rotating shaft, of the material hanging net is connected with the sieve tray, and the other end of the material hanging net is lower than one end, far away from the rotating shaft, of the material hanging net.

Through adopting above-mentioned technical scheme for hang the material net earlier and save the mud that splashes, improve the material receiving capacity of hanging the material net, throw away mud again, improve the contact time of mud and hot air in the drying cylinder.

Optionally, the ejection of compact subassembly includes discharging pipe, negative pressure pump and butterfly valve, the discharge gate has all been seted up in arbitrary sieve tray top to stoving bobbin wall and stoving bobbin side wall, and is a plurality of discharge gate and sieve tray roof parallel and level, discharging pipe one end centers on the discharge gate is fixed at stoving bobbin outer wall, and the other end is used for communicating with each former feed bin, the butterfly valve sets up on the discharging pipe, the negative pressure pump sets up on the discharging pipe of stoving bobbin wall.

Through adopting above-mentioned technical scheme, discharging pipe, negative pressure pump and the butterfly valve of setting can be thrown into the discharging pipe under the effect of centrifugal force through the rotation of screen tray with the raw materials on the screen tray, and the mud powder of chamber diapire will be dried through the negative pressure pump is taken out, and the raw materials that will dry are independently discharged and the storage, need not to sieve after drying again, can directly use the raw materials, reduce operating procedure, raise the efficiency.

Optionally, one end of the top wall of the sieve tray, which is close to the peripheral side wall, is lower than the axis, and the top wall of the sieve tray is in smooth transition.

Through adopting above-mentioned technical scheme, the raw materials on the sieve tray is piled up in sieve tray week side at the action of gravity, when opening the butterfly valve, is convenient for discharge the raw materials on the sieve tray.

Optionally, the feeding subassembly includes inlet pipe and dispersion impeller, the coaxial setting of dispersion impeller is in the pivot of sieve dish top, the inlet pipe is coaxial with drying cylinder, and follows drying cylinder top wall stretches into drying cylinder.

Through adopting above-mentioned technical scheme, the inlet pipe and the dispersion impeller of setting can make grit mud fall earlier on the dispersion impeller, make grit mud dispersion whereabouts sieve through the pivoted dispersion impeller, improve screening efficiency, increase the area of contact of grit mud and a stoving section of thick bamboo inner chamber air simultaneously, improve the stoving effect.

Optionally, an air extractor is arranged on the top wall of the drying cylinder, and an air inlet end of the air extractor is communicated with the drying cylinder.

Through adopting above-mentioned technical scheme, the air extractor of setting can in time discharge the vapor in the section of thick bamboo of drying, keeps the drying of a section of thick bamboo inner chamber of drying, is convenient for carry out the stoving of continuation to the grit raw materials.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the rotating shaft, the rotating motor and the sieve tray are arranged, so that the sand and stone slurry entering the drying barrel can be screened and dried in a layered mode, the sand and stone slurry can be dried in the descending process, the contact area of the raw materials and air in the drying barrel is enlarged, the drying efficiency is improved conveniently, the screened raw materials can be obtained and collected through the discharging assembly, the raw materials can be directly used after the drying is finished, the steps are simplified, and the efficiency is improved;

2. the discharging pipe, the negative pressure pump and the butterfly valve are arranged, raw materials on the sieve tray can be thrown into the discharging pipe under the action of centrifugal force through rotation of the sieve tray, slurry powder on the bottom wall of the drying cavity is pumped out through the negative pressure pump, the dried raw materials are independently discharged and stored, screening after drying is not needed, the raw materials can be directly used, operation steps are reduced, and efficiency is improved;

3. the inlet pipe and the dispersion impeller that set up can make grit mud fall earlier on the dispersion impeller, make grit mud dispersion whereabouts sieve through pivoted dispersion impeller, improve screening efficiency, increase the area of contact of grit mud and a stoving section of thick bamboo inner chamber air simultaneously, improve the stoving effect.

Drawings

FIG. 1 is the overall structure schematic diagram of concrete grit drying device of the embodiment of this application.

Fig. 2 is a schematic view of the interior of the drum of fig. 1.

Description of reference numerals: 1. a drying drum; 2. a drying assembly; 21. an electric heating wire; 22. a blower; 23. an air extractor; 24. a heating cavity; 25. an air outlet; 3. a screen assembly; 31. a rotating shaft; 32. rotating the motor; 33. hanging a material net; 34. a sieve tray; 35. a stirring paddle; 4. a feed assembly; 41. a feed pipe; 42. a dispersion tray; 5. a discharge assembly; 51. a discharge pipe; 52. a negative pressure pump; 53. a butterfly valve; 6. a chassis.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses concrete gravel drying device. Referring to fig. 1, the concrete grit drying device includes chassis 6 and a section of thick bamboo 1, stoving subassembly 2, screening subassembly 3, feeding subassembly 4 and ejection of compact subassembly 5 of setting on chassis 6, and chassis 6 passes through rag bolt and fixes subaerial, and the vertical setting of a section of thick bamboo 1 axial is dried, and chassis 6 welding is in a section of thick bamboo 1 diapire of drying.

Referring to fig. 2, the drying assembly 2 includes a heating wire 21, an air blower 22 and an air extractor 23, the drying drum 1 is provided with two layers, the heating wire 21 is bolted in a heating cavity 24 between the two layers of the drying drum 1, a plurality of air outlets 25 are arranged on the upper side of the sieve tray 34 in the inner layer of the drying drum 1, the air blower 22 is bolted on the outer wall of the drying drum 1, and the air outlets 25 of the air blower 22 are communicated with the heating cavity 24; the air pump 23 is fixed on the top wall of the drying cylinder 1 through bolts, and an air inlet of the air pump 23 is communicated with the inner cavity of the drying cylinder 1. The outer wall of the drying cylinder 1 is made of heat-insulating materials, and the inner wall of the drying cylinder 1 is made of heat-conducting materials.

Referring to fig. 2, the screening assembly 3 includes a rotating shaft 31, a rotating motor 32, a material hanging net 33, and two screening disks 34 and a stirring paddle 35 which are coaxially welded on the rotating shaft 31 in sequence from top to bottom along the axial direction, wherein the screening disks 34 have gradually reduced screen holes from top to bottom; the top wall of the sieve tray 34 is arranged at one end close to the peripheral side wall and lower than the axle center, and the top wall of the sieve tray 34 is in smooth transition. The rotating shaft 31 coaxially extends into the drying cylinder 1 along the bottom wall of the drying cylinder 1 and is rotatably connected with the drying cylinder 1 through a bearing, and a sealing rotating ring is sleeved at the bearing; the side wall of the sieve tray 34 is rotatably connected with the inner wall of the drying cylinder 1 through a bearing, the rotating motor 32 is fixed on the bottom wall of the drying cylinder 1 through a bolt, and a piston rod of the rotating motor 32 is in coaxial key connection with the rotating shaft 31. The material hanging nets 33 are arranged in a plurality of numbers, are distributed along the circumferential direction of the rotating shaft 31 and are distributed along the axial direction of the rotating shaft 31 in a staggered way; hang material net 33 cross-section and set up to the L type, and hang material net 33 one end welding at sieve tray 34 diapire to close to sieve tray 34 lateral wall setting, the other end level sets up near pivot 31.

Referring to fig. 2, feeding assembly 4 includes feeding pipe 41 and dispersion plate 42, and dispersion plate 42 is coaxially welded on the top end of rotary shaft 31 extending into drying cylinder 1, and the top wall of dispersion plate 42 is set to be conical. The feeding pipe 41 is coaxial with the drying cylinder 1 and extends into the drying cylinder 1 along the top wall of the drying cylinder 1 to be connected with the drying cylinder 1 through a flange.

Referring to fig. 2, the discharging assembly 5 includes a discharging pipe 51, a negative pressure pump 52 and a butterfly valve 53, the bottom wall of the drying cylinder 1 and the side wall of the drying cylinder 1 are both provided with discharging ports above the two sieve trays 34, and the discharging ports on the side wall of the drying cylinder 1 are flush with and inclined to the top wall of the sieve trays 34; discharging pipe 51 one end is fixed at the 1 outer wall of a stoving section of thick bamboo around the discharge gate flange, and the other end is used for communicating with each former feed bin, and butterfly valve 53 flange joint is on discharging pipe 51, and negative pressure pump 52 flange intercommunication is on the discharging pipe 51 of 1 diapire of a stoving section of thick bamboo.

The implementation principle of the concrete gravel drying device in the embodiment of the application is as follows: when drying the grit mud, to the heating wire 21 circular telegram for the temperature in the heating chamber 24 risees, heats the bucket air of drying, and opens air-blower 22, gets into stoving intracavity wall along air outlet 25 with the hot-air in the heating chamber 24, improves stoving section of thick bamboo 1 inner chamber temperature. Then, sand slurry is pumped into the drying cylinder 1 through the feeding pipe 41 along the top wall of the drying cylinder 1 and falls on the dispersion disc 42, the rotating motor 32 is started, the output shaft of the rotating motor 32 drives the rotating shaft 31 and the sieve disc 34 and the dispersion disc 42 on the rotating shaft 31 to rotate, and the sand slurry on the dispersion disc 42 is thrown away from the dispersion disc 42 under the action of centrifugal force and gravity until the sand slurry falls on the sieve disc 34. The materials larger than the screening particle size of the screening disc 34 are left on the screening disc 34, the rest materials fall to continue screening until the mud falls on the bottom wall of the drying cylinder 1, the air extractor 23 is started, the rising water vapor is extracted from the drying cylinder 1, and the butterfly valve 53 is opened until the drying is finished, so that the materials at the bottoms of the screening disc 34 and the drying cylinder 1 are collected.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concrete grit drying device which characterized in that: the drying device comprises a drying drum (1), a feeding component (4), a discharging component (5), a drying component (2) and a screening component (3), wherein the feeding component (4) is arranged on the top wall of the drying drum (1) and is communicated with the inner cavity of the drying drum (1), and the drying component (2) is arranged on the drying drum (1) and can heat the inner cavity of the drying drum (1); the screening component (3) comprises a rotating shaft (31), a rotating motor (32) and at least two screening discs (34) which are sequentially and coaxially arranged on the rotating shaft (31) along the axial direction, the rotating shaft (31) coaxially extends into the drying drum (1) and is rotatably connected with the drying drum (1), the side wall of each screening disc (34) is rotatably connected with the inner wall of the drying drum (1), the rotating motor (32) is fixed on the bottom wall of the drying drum (1), and a piston rod of the rotating motor (32) is coaxially connected with the rotating shaft (31); the feeding assembly (4) is arranged on the drying drum (1) and is used for conveying the raw materials on the sieve tray (34) out of the drying drum (1).

2. The concrete gravel drying device of claim 1, wherein: screening subassembly (3) still include stirring rake (35), stirring rake (35) set firmly pivot (31) stretch into drying cylinder (1) inner chamber part, and are close to drying cylinder (1) diapire one end sets up.

3. The concrete gravel drying device of claim 2, wherein: screening subassembly (3) still include a plurality of string material net (33), it sets up and is being close to hang material net (33) sieve dish (34) diapire of stirring rake (35) one end, it distributes along pivot (31) axial interlock to hang material net (33), and is close to sieve dish (34) lateral wall sets up.

4. The concrete gravel drying device of claim 3, wherein: hang material net (33) and keep away from pivot (31) one end and be connected with sieve tray (34), hang material net (33) other end and be less than and keep away from pivot (31) one end setting.

5. The concrete gravel drying device of claim 1, wherein: discharging component (5) include discharging pipe (51), negative pressure pump (52) and butterfly valve (53), the discharge gate has all been seted up in arbitrary sieve tray (34) top to a stoving section of thick bamboo (1) diapire and a stoving section of thick bamboo (1) lateral wall, and is a plurality of discharge gate and sieve tray (34) roof parallel and level, discharging pipe (51) one end centers on the discharge gate is fixed at a stoving section of thick bamboo (1) outer wall, and the other end is used for communicating with each former feed bin, butterfly valve (53) set up on discharging pipe (51), negative pressure pump (52) set up on discharging pipe (51) of a stoving section of thick bamboo (1) diapire.

6. The concrete gravel drying device of claim 5, wherein: the top wall of the sieve tray (34) is arranged at a position lower than the axis and close to one end of the peripheral side wall, and the top wall of the sieve tray (34) is in smooth transition.

7. The concrete gravel drying device of claim 1, wherein: feeding subassembly (4) include inlet pipe (41) and dispersion impeller (42), the coaxial setting of dispersion impeller (42) is in pivot (31) of sieve dish (34) top, inlet pipe (41) are coaxial with drying cylinder (1), and follow drying cylinder (1) roof stretches into drying cylinder (1).

8. The concrete gravel drying device of claim 1, wherein: an air extractor (23) is arranged on the top wall of the drying cylinder (1), and the air inlet end of the air extractor (23) is communicated with the drying cylinder (1).