Material crushing and distributing integrated device for filter press
Technical Field
The utility model relates to a material distribution device, in particular to a material crushing and material distributing integrated device which is suitable for crushing and uniformly paving sludge solid waste on a feeding end of a filter press before the sludge solid waste is dewatered by the filter press, and belongs to the technical field of sludge solid waste treatment.
Background
At present, in order to secondarily utilize domestic sludge solid waste such as river sludge, inspection well sludge and the like and industrial sludge solid waste such as paper making sludge, printing and dyeing sludge, coal slime and the like, the primary dehydration is generally carried out through a filter press (the water content of the sludge after the filter pressing treatment is about 60%), then the water content of the sludge after the filter pressing is reduced by adopting a heat exchange drying mode (the water content of the sludge after the drying treatment is generally controlled below 20%), and the important factor influencing the heat exchange efficiency and the final water content of the sludge is the granularity of the sludge. However, solid waste of sludge is usually not homogeneous, and often contains more solid large-particle impurities with irregular shapes, especially solid waste of domestic sludge such as river sludge, inspection well sludge and the like, and often contains too many impurities such as stones, plastic blocks, wood blocks and the like, and the impurities with larger particle sizes not only prevent sludge dewatering, but also seriously damage equipment, taking a chain belt type filter press as an example for primary dewatering process, in the filter press process, the narrowest distance between an upper pressure belt and a lower pressure belt of the filter press is usually about 5mm, and the impurities with particle sizes larger than 5mm often cause material clamping and blocking, and even damage the pressure belt. Therefore, before preliminary dehydration is carried out through the filter press, the original form of sludge solid waste needs to be subjected to crushing pretreatment firstly, and then is directly conveyed to the filter press through the screw conveyor for filter pressing, on one hand, because the water content of the original form of sludge solid waste is high, when the sludge crusher which is used for crushing through the conventional rotary crushing knife or crushing through the pair roller extrusion is adopted for pretreatment, materials are easily adhered to the crushing knife or the extrusion pair roller, and the crushing effect is not ideal; on the other hand, the mode of directly conveying the crushed sludge solid waste to a filter press by a screw conveyor for filter pressing has the problem of unbalanced load of the filter press caused by uneven distribution.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a material crushing and distributing integrated device for a filter press, which can effectively crush original-form sludge solid waste containing more irregular-shaped solid large-particle impurities and having higher water content, so that the granularity of the crushed sludge solid waste is smaller than a set granularity, can realize uniform distribution, and is particularly suitable for being installed above a feeding end of the filter press.
In order to realize the aim, the material crushing and distributing integrated device for the filter press comprises a box body, and a stirring distributing part and an extruding crushing part which are arranged in the box body;
the box body is of a box-type structure with an upper opening and a lower opening, the top end of the box body is provided with a feeding port, the bottom end of the box body is provided with a discharging port, and the length dimension of the discharging port of the box body along the left and right direction is matched with the width dimension of the feeding end of the filter press;
the stirring and distributing part comprises a stirring and distributing main shaft and a plurality of stirring and distributing plates which are fixedly arranged on the stirring and distributing main shaft in a stretching way; the stirring cloth main shaft arranged along the left and right directions in the axial direction is erected and installed in the box body through a bearing seat and is in transmission connection with a stirring cloth main shaft driving motor; the stirring distributing plates are uniformly distributed, and the arrangement positions of the stirring distributing plates corresponding to the box body feeding port are obliquely arranged along the axial direction of the stirring distributing main shaft towards the direction far away from the box body feeding port;
the extrusion crushing part is positioned below the stirring material distribution part and at the inner bottom of the box body and comprises an extrusion crushing main shaft, a wedge-shaped extrusion plate assembly and a bottom sieve plate; an extrusion crushing main shaft arranged in parallel with the stirring distribution main shaft is erected and installed inside the box body through a bearing seat, and the extrusion crushing main shaft is in transmission connection with an extrusion crushing main shaft driving motor; a bottom sieve plate with a semi-cylindrical structure is hermetically and fixedly arranged at the bottom of the box body, the bottom sieve plate and the extrusion crushing main shaft are coaxially arranged, and sieve pores penetrating through the cylinder wall are densely and uniformly distributed on the bottom sieve plate; stretch out wedge extrusion board subassembly that sets up for extrusion broken main shaft central symmetry along the radial direction of extrusion broken main shaft and set up to many, wedge extrusion board subassembly includes and installs the extrusion panel on extrusion broken main shaft through extrusion panel support frame, the length dimension of rectangular panel structure's extrusion panel along left right direction and the length dimension cooperation of box inner chamber along left right direction, the extrusion panel corresponds the soon to including extrusion face section and guide face section of extrusion broken main shaft, the interior surface clearance fit of extrusion face section and end sieve, and the clearance volume corresponds the soon of main shaft to crescent setting, the one end butt joint fixed connection of guide face section is held at the big clearance of extrusion face section, the other end sets up to the slope of extrusion broken main shaft direction.
As an embodiment of the utility model, the feeding port of the box body is positioned in the middle position of the box body along the left-right direction, the stirring and distributing plates positioned on the left side of the feeding port of the box body are all obliquely arranged towards the left side, and the stirring and distributing plates positioned on the right side of the feeding port of the box body are all obliquely arranged towards the right side.
As another embodiment of the utility model, the feeding port of the box body is positioned at the left end or the right end of the box body along the left-right direction, and the stirring and distributing plate is obliquely arranged towards the right or the left.
As a further development of the utility model, the pressing surface section is of an arcuate panel structure with curvature.
As a further improvement scheme of the utility model, the top end of the stirring distributing plate and/or the plate body of the stirring distributing plate is/are provided with a stirring head which is arranged in a protruding way.
As a further improvement scheme of the utility model, a plate body of the stirring and distributing plate is arranged in a twisting way.
As a further improvement of the utility model, the stirring cloth main shaft is arranged in a plurality of pieces in parallel along the front-back direction.
As a further improvement of the utility model, the sieve holes of the bottom sieve plate are in a conical hole structure with a small inside and a large outside.
As a further improvement scheme of the utility model, a tapered material guide opening structure is arranged at the outer opening of the screen hole of the bottom screen plate.
As a further improvement scheme of the utility model, the stirring and distributing main shaft driving motor and the extrusion crushing main shaft driving motor share the same driving motor.
Compared with the prior art, when the material crushing and distributing integrated device for the filter press is installed above the feeding end of the filter press for use, after the stirring distribution main shaft driving motor and the extrusion crushing main shaft driving motor are started, the stirring distribution main shaft drives the stirring distribution plate to rotate in the circumferential direction, the extrusion crushing main shaft drives the wedge-shaped extrusion plate assembly to rotate in the circumferential direction, solid sludge waste is continuously led into the box body through the feeding port of the box body, the stirring effect and the pushing effect of the stirring distribution plate enable the solid sludge waste entering the box body to be uniformly spread in the inner cavity of the box body, meanwhile, when the wedge-shaped extrusion plate assembly passes through the coverage range of the bottom sieve plate, the solid sludge waste is extruded into a gap between the extrusion panel and the inner surface of the sieve tube under the guiding effect of the material guiding surface section to realize primary extrusion crushing, and because the gap amount is gradually increased along the rotating direction of the extrusion crushing main shaft, the solid sludge waste extruded into the gap is secondarily extruded and crushed, And is extruded by the sieve pores of the bottom sieve plate, the particle size is controlled by the sieve pores of the bottom sieve plate, and the sludge solid waste discharged from the bottom sieve plate uniformly falls on the feeding end of the filter press, the particle size can be controlled according to the requirement by replacing sieve cylinders with sieve pores with different pore sizes, so that the filter press not only can be suitable for crushing the sludge solid waste with relatively low water content before drying treatment, but also can effectively crush the original-form sludge solid waste with higher water content and more irregular-shaped solid large particle impurities, and can be suitable for crushing pretreatment of the original-form sludge solid waste with high water content before preliminary dehydration of the filter press, and simultaneously realize uniform distribution, thereby avoiding equipment damage caused by large sludge particle size and improving the heat exchange efficiency of the subsequent heat exchange process, is particularly suitable for being arranged above the feeding end of the filter press.
Drawings
FIG. 1 is a schematic view of the overall appearance of the three-dimensional structure of the present invention;
FIG. 2 is a schematic three-dimensional structure of FIG. 1 with portions of the upright panels of the box removed;
FIG. 3 is a schematic top view of the present invention;
fig. 4 is a schematic sectional structure view of the side end portion of the present invention.
In the figure: 1. the material distribution device comprises a box body, 2, a stirring material distribution main shaft, 3, a stirring material distribution plate, 31, a stirring head, 4, an extrusion crushing main shaft, 5, a wedge-shaped extrusion plate assembly, 51, an extrusion panel, 511, an extrusion surface section, 512, a material guide surface section, 52, an extrusion panel supporting frame and 6 a bottom sieve plate.
Detailed Description
The present invention will be further explained with reference to the drawings (hereinafter, the axial direction of the stirring cloth spindle 2 will be described as the left-right direction).
As shown in fig. 1 and 2, the material crushing and distributing integrated device for the filter press comprises a box body 1, and a material stirring and distributing part and a material extruding and crushing part which are arranged in the box body 1.
The box body 1 is of a box-shaped structure with an upper opening and a lower opening, a material inlet is formed in the top end of the box body 1, a material outlet is formed in the bottom end of the box body 1, and the length dimension of the material outlet of the box body 1 in the left-right direction is matched with the width dimension of the material inlet end of the filter press.
The stirring and distributing part comprises a stirring and distributing main shaft 2 and a plurality of stirring and distributing plates 3 which are fixedly arranged on the stirring and distributing main shaft 2 in a stretching way; the stirring cloth main shaft 2 arranged along the left and right directions in the axial direction is erected and installed inside the box body 1 through a bearing seat, the stirring cloth main shaft 2 is in transmission connection with a stirring cloth main shaft driving motor, and the stirring cloth main shaft 2 can rotate in the circumferential direction by controlling the action of the stirring cloth main shaft driving motor; a plurality of stirring cloth plates 3 are uniformly distributed along the circumferential direction and the axial direction of the stirring cloth main shaft 2, the arrangement positions of the stirring cloth plates 3 corresponding to the feeding port of the box body 1 are obliquely arranged along the axial direction of the stirring cloth main shaft 2 towards the direction far away from the feeding port of the box body 1, taking the case that the feeding port of the box body 1 is located at the middle position of the box body 1 along the left-right direction as an example, as shown in figure 3, the stirring cloth plate 3 positioned at the left side of the feeding port of the box body 1 is obliquely arranged towards the left side, the stirring cloth plate 3 positioned at the right side of the feeding port of the box body 1 is obliquely arranged towards the right side, taking the case that the feeding port of the box body 1 is positioned at the left end or the right end of the box body 1 along the left-right direction as an example, then stirring cloth plate 3 all sets up to right-hand or left slope, so set up, and 2 circumferential direction of stirring cloth main shaft rotation in-process can make the solid useless stirring effect and the pushing action of stirring cloth plate 3 that the slope set up of mud that gets into box 1 through the pan feeding mouth of box 1 realize even cloth.
The extrusion crushing part is positioned below the stirring material part and at the inner bottom of the box body 1 and comprises an extrusion crushing main shaft 4, a wedge-shaped extrusion plate component 5 and a bottom sieve plate 6; an extrusion crushing main shaft 4 arranged in parallel with the stirring distribution main shaft 2 is erected and installed inside the box body 1 through a bearing seat, the extrusion crushing main shaft 4 is in transmission connection with an extrusion crushing main shaft driving motor, and the circumferential rotation of the extrusion crushing main shaft 4 can be realized by controlling the action of the extrusion crushing main shaft driving motor; a bottom sieve plate 6 with a semi-cylindrical structure is hermetically and fixedly arranged at the bottom of the box body 1, the bottom sieve plate 6 and the extrusion crushing main shaft 4 are coaxially arranged, and sieve pores penetrating through the cylinder wall are densely and uniformly distributed on the bottom sieve plate 6; as shown in fig. 4, the wedge-shaped pressing plate assembly 5 extending along the radial direction of the main extrusion shaft 4 is symmetrically arranged into a plurality of pieces relative to the center of the main extrusion shaft 4, the wedge-shaped pressing plate assembly 5 comprises a pressing panel 51 installed on the main extrusion shaft 4 through a pressing panel support frame 52, the length of the pressing panel 51 in the left-right direction is matched with the length of the inner cavity of the box body 1 in the left-right direction, the rotating direction of the pressing panel 51 corresponding to the main extrusion shaft 4 comprises a pressing surface section 511 and a material guiding surface section 512, the pressing surface section 511 is in clearance fit with the inner surface of the bottom screen plate 6, the gap amount is gradually increased corresponding to the rotating direction of the main shaft 4, one end of the material guiding surface section 512 is fixedly connected to the large gap end of the pressing surface section 511, and the other end is inclined toward the main extrusion shaft 4.
Taking a chain belt type filter press as an example, when the material crushing and distributing integrated device for the filter press is installed above a feeding end of the chain belt type filter press for use, the length dimension of a discharging opening of a box body 1 along the left-right direction is matched with the width dimension of an upper pressing belt of the chain belt type filter press, after a stirring distributing main shaft driving motor and an extrusion crushing main shaft driving motor are started, a stirring distributing main shaft 2 drives a stirring distributing plate 3 to rotate circumferentially, an extrusion crushing main shaft 4 drives a wedge-shaped extrusion plate component 5 to rotate circumferentially, solid sludge is continuously guided into the box body 1 through the feeding opening of the box body 1, the stirring effect and the pushing effect of the stirring distributing plate 3 enable solid sludge entering the box body 1 to be uniformly spread in an inner cavity of the box body 1, meanwhile, when the wedge-shaped extrusion plate component 5 passes through the coverage range of a bottom screen plate 6, the solid sludge is extruded into a gap between an extrusion panel 51 and the inner surface of a screen drum 3 under the guiding effect of a material guiding surface section 512 to realize one-time extrusion crushing, because the clearance amount is arranged along the rotating direction of the extrusion crushing main shaft 4 to be gradually increased, the sludge solid waste extruded into the clearance is crushed by secondary extrusion and is extruded through the sieve pores of the bottom sieve plate 6, and the uniform distribution on the lower pressure belt of the chain belt type filter press is realized by uniformly dropping the sludge solid waste of the bottom sieve plate 6 while the granularity is controlled by the sieve pores of the bottom sieve plate 6.
In order to achieve a better secondary crushing effect, as a further improvement of the present invention, as shown in fig. 4, the extrusion surface section 511 is an arc-shaped panel structure having a curvature, and the arc-shaped panel structure can achieve smooth transition of a gap between the extrusion surface section 511 and the inner surface of the bottom screen 6, thereby achieving a better secondary crushing effect.
In order to achieve a better stirring effect, as a further improvement of the present invention, as shown in fig. 1 and fig. 2, a stirring head 31 is provided on the top end of the stirring and distributing plate 3 and/or the plate body of the stirring and distributing plate 3 in a protruding manner.
In order to realize better material distribution effect, the plate body of the stirring material distribution plate 3 is twisted, so that the plate body of the stirring material distribution plate 3 has the same structure with the helical blade, and better material pushing effect can be realized.
In order to achieve a better cloth stirring effect, as a further improvement of the utility model, the cloth stirring main shaft 2 is arranged in a plurality of pieces in parallel along the front-back direction.
In order to facilitate the smooth discharge of the solid sludge waste from the sieve pores of the bottom sieve plate 6, as a further improvement scheme of the utility model, the sieve pores of the bottom sieve plate 6 are in a tapered hole structure with a small inside and a large outside, or the outer hole of the sieve pores of the bottom sieve plate 6 is provided with a tapered material guide opening structure.
In order to reduce the arrangement of the mechanism, as a further improvement scheme of the utility model, the stirring and distributing main shaft driving motor and the extrusion crushing main shaft driving motor share the same driving motor.