Screening equipment for producing autoclaved fly ash bricks
Technical Field
The utility model belongs to the technical field of screening equipment, and particularly relates to screening equipment for producing autoclaved fly ash bricks.
Background
The autoclaved fly ash brick is prepared by taking fly ash, lime or cement as main raw materials, adding a proper amount of gypsum and aggregate into the main raw materials, and carrying out mixture preparation, compression molding, high-pressure or normal-pressure curing or natural curing on the mixture. The fly ash brick is prepared by taking fly ash and lime as main raw materials, adding a proper amount of gypsum and aggregate, preparing a blank, performing compression molding and performing high-pressure steam curing, and is called fly ash brick for short.
When the existing screening equipment for producing autoclaved fly ash bricks is used, raw materials are generally directly put into the screening equipment firstly, and then the screening equipment is started to work, so that the raw materials are stacked together, fly ash, lime or cement and the like in the raw materials cannot be rapidly screened out in a short time, and the screening efficiency is low.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the embodiment of the utility model aims to provide the screening equipment for producing the autoclaved fly ash brick so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
the screening device for producing the autoclaved fly ash bricks comprises a sealing frame, a screening shell and a driving device, wherein one end of the sealing frame is fixedly connected with a feeding shell, the screening shell is movably sleeved on the feeding shell, the screening shell is communicated with the feeding shell, the other end of the screening shell is provided with a second discharging pipe, the driving device is connected with the second discharging pipe, a plurality of material guide plates are arranged on the inner wall of the screening shell, the side wall of the screening shell is provided with a filtering mesh hole, an electrostatic adsorption cylinder is arranged in the sealing frame, the electrostatic adsorption cylinder is sleeved outside the screening shell, the feeding shell comprises a feeding channel, a cavity and a ventilation cover plate, one end of the cavity is communicated with the ventilation cover plate, an air inlet pipeline is connected on the ventilation cover plate, and the air inlet pipeline is connected with an air pump through an air guide pipe, the other end of the cavity is provided with an air outlet mesh.
Preferably, feed inlet and discharge gate are respectively at feed channel's both ends, feed inlet and vent flap all are located the feed shell outside, and discharge gate and the mesh of giving vent to anger all are located the feed shell inboard, the axis of cavity is unanimous with feed channel's axis, the fixed cover of vent flap is established in the feed channel outside.
Preferably, a scraping plate is further arranged between the electrostatic adsorption barrel and the screening shell, the scraping plate is movably sleeved on the screw rod, two ends of the screw rod are mounted in the sealing frame, a third transmission gear is mounted on the screw rod and meshed with a second transmission gear mounted on the side wall of the screening shell, and a nut block in threaded connection with the screw rod is preassembled on the scraping plate.
Preferably, the scraper is designed to be circular, a plurality of first needle clusters are installed on one side, close to the electrostatic adsorption cylinder, of the scraper, a plurality of second needle clusters are installed on one side, close to the screening shell, of the scraper, and the first needle clusters are respectively connected with the electrostatic adsorption cylinder and the screening shell in a laminating mode.
Preferably, one side of the electrostatic adsorption cylinder body close to the sealing frame is connected with a wiring terminal, and the wiring terminal is connected with an external power supply through a wire.
Preferably, a material guide platform is arranged at one end, far away from the feeding shell, of the sealing frame, and a first material discharge pipe is installed at one end of the material guide platform.
Preferably, the second row material pipe lateral wall is connected with first transmission gear, drive arrangement includes driving motor and drive gear, driving motor passes through drive shaft connection drive gear, drive gear and the meshing of first transmission gear are connected.
In summary, compared with the prior art, the embodiment of the utility model has the following beneficial effects:
1. the material screening shell comprises a plurality of material guide plates, a plurality of material guide plates and a plurality of material screening plates, wherein the material screening plates are arranged in an inclined mode, when a raw material falls on the material guide plate closest to the raw material from the feeding shell, the raw material can slide from the material guide plates to the other material guide plate, the material screening shell keeps a rotating state while sliding, the raw material can sequentially slide along the plurality of material guide plates while rotating by controlling the inclination of the material guide plates and the rotating speed of the material screening shell, the raw material in the feeding shell directly enters the material screening shell, the raw material can be accumulated at the bottom of the material screening shell, the accumulated raw material cannot be thoroughly screened only by the centrifugal force generated by the rotation of the material screening shell, the raw material can be screened more fully by the design of the material guide plates, the screening effect is improved, and the working efficiency is also improved;
2. the design of the cavity and the ventilation cover plate in the feeding shell can ensure that gas generated in the air pump enters the cavity and then enters the screen material shell from the air outlet mesh, so that the feeding shell has the functions of conveying raw materials and conveying gas simultaneously, and has the characteristic of strong practicability, the gas conveyed into the screen material shell can blow fly ash, lime or cement in the raw materials, and the blowing purposes are two, firstly, the fly ash, lime or cement can be quickly separated from large-particle impurities such as stones, the blowing force generated by the gas solves the problem that part of the fly ash, lime or cement is adhered to the large-particle impurities such as the stones and cannot be directly separated by centrifugal force, secondly, the separated fly ash, lime or cement can quickly penetrate through the filter mesh, and the gas in the screen material shell can be discharged from the filter mesh and enters the sealing frame, in the process, the fly ash, lime or cement and the like can be blown into the sealing frame together, so that the screening work efficiency is further improved;
3. the electrostatic adsorption cylinder generates adsorption force and can intensively adsorb fly ash, lime or cement suspended in the sealing frame on the inner wall of the electrostatic adsorption cylinder, so that the fly ash, lime or cement are conveniently cleaned and collected when being intensively carried out, the problem that the fly ash, lime or cement are adhered on the inner wall of the sealing frame and are inconvenient to clean is prevented, and the working efficiency of screening is further improved.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural view of a screening device for producing autoclaved fly ash bricks.
Fig. 2 is a first perspective view of the feeding housing of the utility model.
Fig. 3 is a second perspective view of the feeding housing of the utility model.
Fig. 4 is a cross-sectional view of a feeding housing in the utility model.
Fig. 5 is a perspective view of the material sieving shell of the utility model.
Fig. 6 is an assembly view of the scraper plate and the screw rod in the utility model.
Fig. 7 is an assembly view of the electrostatic adsorbing cylinder and the scraper plate of the utility model.
Fig. 8 is an assembly view of the screen casing and the scraper plate of the utility model.
Reference numerals: 1-sealing frame, 11-material guiding platform, 12-first material discharging pipe, 2-material feeding shell, 21-material feeding channel, 22-cavity, 23-ventilation cover plate, 24-air inlet pipeline, 25-air outlet hole, 3-material sieving shell, 31-filtering mesh hole, 32-material guiding plate, 33-second material discharging pipe, 34-first transmission gear, 35-second transmission gear, 4-electrostatic adsorption cylinder, 41-binding post, 42-lead wire, 5-scraping plate, 51-lead screw, 52-third transmission gear, 53-first needle cluster, 54-second needle cluster, 6-air pump, 61-air guide pipe and 7-driving device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 to 5, the present embodiment provides a screening device for producing autoclaved fly ash bricks, including a sealing frame 1, a screening housing 3 and a driving device 7, wherein one end of the sealing frame 1 is fixedly connected with a feeding housing 2, the screening housing 3 is movably sleeved on the feeding housing 2, the screening housing 3 is communicated with the feeding housing 2, the other end of the screening housing 3 is provided with a second discharging pipe 33, the driving device 7 is connected with the second discharging pipe 33, the inner wall of the screening housing 3 is provided with a plurality of material guiding plates 32, the side wall of the screening housing 3 is provided with a filtering mesh 31, an electrostatic adsorption cylinder 4 is installed in the sealing frame 1, the electrostatic adsorption cylinder 4 is sleeved outside the screening housing 3, the feeding housing 2 includes a feeding channel 21, a cavity 22 and a ventilation cover plate 23, one end of the cavity 22 is communicated with the ventilation cover plate 23, be connected with inlet line 24 on the vent flap 23, inlet line 24 passes through air duct 61 and connects air pump 6, outlet hole 25 has been seted up to the other end of cavity 22, one side that is close to sealed frame 1 on the electrostatic absorption barrel 4 is connected with terminal 41, external power source is connected through wire 42 to terminal 41, the second is arranged the material pipe 33 lateral wall and is connected with first transmission gear 34, drive arrangement 7 includes driving motor and drive gear, driving motor passes through drive shaft connection drive gear, drive gear is connected with the meshing of first transmission gear 34.
In the scheme, driving motor passes through the meshing connection between drive gear and the first drive gear 34 and drives sieve material casing 3 rotatory, because the aperture design of filter mesh 31 is less (between the volume of small granule such as fly ash, lime or cement and the volume of large granule such as stone), so, fly ash, small granule such as lime or cement in the raw materials can pass filter mesh 31 under the effect of centrifugal force, and large granule impurity such as stone in the raw materials is because unable filter mesh 31 of passing, thereby the function of sieve material has been realized, arrange the first valve on the pipe 33 through opening the second, large granule impurity such as stone can arrange the discharge of pipe 33 through the second, the above rationale for sieve material.
In addition, several guide plates 32 are obliquely arranged in the screen material shell 3, and after the raw material falls from the feeding shell 2 to the nearest guide plate 32, the raw material will slide down from the material guiding plate 32 to another material guiding plate 32, while the material screening case 3 keeps rotating, by controlling the inclination of the material guiding plate 32 and the rotation speed of the material screening case 3, the raw materials can slide down along the plurality of material guide plates 32 in sequence while the material sieving shell 3 rotates, and the raw materials in the feeding casing 2 directly get into the mode of sieve material casing 3, and the raw materials can be piled up in sieve material casing 3 bottom, only relies on the centrifugal force of sieve material casing 3 rotatory production can't be with the thorough screening of accumulational raw materials, and the design of stock guide 32 can make the raw materials by more abundant of screening to when having improved the screening effect, still improved work efficiency.
Still, the feed channel 21 in the feed shell 2 is used for adding raw materials into the sieve shell 3, and the design of the cavity 22 and the vent cover plate 23 in the feed shell 2 can make the gas generated in the air pump 6 enter the cavity 22, and then enter the sieve shell 3 through the vent holes 25, so that the feed shell 2 has the functions of conveying raw materials and conveying gas, and has the characteristic of strong practicability, the gas conveyed into the sieve shell 3 can blow up the fly ash, lime or cement in the raw materials, the blowing-up purpose is two, firstly, the fly ash, lime or cement can be rapidly separated from large-particle impurities such as stones, the blowing force generated by the gas solves the problem that part of the fly ash, lime or cement is adhered to the large-particle impurities such as stones and cannot be directly separated through centrifugal force, and secondly, the separated fly ash, lime or cement, Lime or cement can permeate through filter mesh 31 fast, and the gas that gets into sieve material casing 3 can be followed filter mesh 31 and discharged and get into in the sealing frame 1, can blow fly ash, lime or cement etc. to the sealing frame 1 in the lump in this in-process, has further improved the work efficiency of screening, from this can know, in order to the gas discharge in the sealing frame 1, still need to install the exhaust apparatus of exhaust gas on sealing frame 1.
The electrostatic adsorption cylinder 4 generates adsorption force to intensively adsorb fly ash, lime or cement suspended in the sealing frame 1 on the inner wall of the electrostatic adsorption cylinder 4, so that the fly ash, lime or cement is conveniently cleaned and collected when being intensively carried out, the problem that the fly ash, lime or cement is adhered on the inner wall of the sealing frame 1 and is inconvenient to clean is prevented, and the screening work efficiency is further improved.
Referring to fig. 2 to 4, as an embodiment of the present application, two ends of the feeding channel 21 are respectively a feeding port and a discharging port, the feeding port and the vent cover plate 23 are both located outside the feeding shell 2, the discharging port and the air outlet holes 25 are both located inside the feeding shell 2, an axis of the cavity 22 is consistent with an axis of the feeding channel 21, and the vent cover plate 23 is fixedly sleeved outside the feeding channel 21.
In the above scheme, the pore diameter of the air outlet hole 25 is small, so as to prevent the fly ash, lime or cement from entering the cavity 22 to cause blockage.
Referring to fig. 6 to 8, as an embodiment of the present application, a scraping plate 5 is further disposed between the electrostatic adsorption cylinder 4 and the screen shell 3, the scraping plate 5 is movably sleeved on a screw rod 51, two ends of the screw rod 51 are both installed in the sealing frame 1, a third transmission gear 52 is installed on the screw rod 51, the third transmission gear 52 is engaged with a second transmission gear 35 installed on a side wall of the screen shell 3, and a nut block in threaded connection with the screw rod 51 is preassembled on the scraping plate 5.
In the above scheme, the rotary screening shell 3 can also drive the screw rods 51 to rotate through the meshing connection between the second transmission gear 35 and the third transmission gear 52, and the number of the screw rods 51 can be designed to be a plurality, so as to drive the scraping plates 5 to do linear motion.
Referring to fig. 6 to 8, as an embodiment of the present application, the scraping plate 5 is designed to be a circular ring, a plurality of first needle clusters 53 are installed on one side of the scraping plate 5 close to the electrostatic adsorption cylinder 4, a plurality of second needle clusters 54 are installed on one side of the scraping plate 5 close to the screening housing 3, and the first needle clusters 53 and the second needle clusters 54 are respectively attached to the electrostatic adsorption cylinder 4 and the screening housing 3.
In the above scheme, the first needle clusters 53 on the scraper plate 5 can scrape off the fly ash, lime or cement adsorbed on the electrostatic adsorption cylinder 4, and the second needle clusters 54 can clean the fly ash, lime or cement adhered or blocked on the filter mesh 31, so that the screening efficiency is further improved.
Referring to fig. 1, as an embodiment of the present application, a material guiding platform 11 is disposed at an end of the sealing frame 1 away from the feeding housing 2, and a first discharging pipe 12 is installed at an end of the material guiding platform 11.
In the above scheme, the fly ash, lime or cement scraped from the electrostatic adsorption cylinder 4 directly falls on the material guide platform 11, and because the material guide platform 11 is obliquely arranged, the fly ash, lime or cement slides to the first discharge pipe 12 along the material guide platform 11 under the action of self gravity, and the fly ash, lime or cement can be collected by opening the first valve of the first discharge pipe 12.
The rest of the structure of this example is the same as example 1.
The working principle of the utility model is as follows: the driving motor drives the material sieving shell 3 to rotate through the meshing connection between the driving gear and the first transmission gear 34, and the aperture design of the filtering mesh 31 is smaller (between the volume of small particles such as fly ash, lime or cement and the volume of large particles such as pebble), so that the small particles such as fly ash, lime or cement in the raw material can pass through the filtering mesh 31 under the action of centrifugal force, and large-particle impurities such as pebble in the raw material cannot pass through the filtering mesh 31, so that the material sieving function is realized, by opening the first valve on the second material discharging pipe 33, the large-particle impurities such as pebble can be discharged through the second material discharging pipe 33, gas generated in the air pump 6 enters the cavity 22 and then enters the material sieving shell 3 from the air outlet mesh 25, so that the feeding shell 2 has the functions of conveying the raw material and the gas, and the electrostatic adsorption cylinder 4 generates adsorption force and can enable the fly ash suspended in the sealing frame 1 to be subjected to adsorption, Lime or cement can be intensively adsorbed on the inner wall of the electrostatic adsorption cylinder 4, so that the lime or cement can be conveniently cleaned and collected in a centralized way, the rotary screening shell 3 can drive the screw rods 51 to rotate through the meshed connection between the second transmission gear 35 and the third transmission gear 52, the number of the screw rods 51 can be designed into a plurality, so as to drive the scraping plate 5 to do linear motion, the first needle cluster 53 on the scraping plate 5 can scrape the fly ash, the lime or the cement adsorbed on the electrostatic adsorption cylinder 4, while the second needle cluster 54 can clean the fly ash, the lime or the cement adhered or blocked on the filter mesh 31, the fly ash, the lime or the cement scraped from the electrostatic adsorption cylinder 4 directly falls on the material guide platform 11, and as the material guide platform 11 is obliquely arranged, the fly ash, the lime or the cement can slide to the first material discharge pipe 12 along the material guide platform 11 under the action of self gravity, by opening the first valve of the first discharge pipe 12, fly ash, lime or cement can be collected.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.