CN108421297A - A kind of scraper type automatic fitration slag extractor - Google Patents

Abstract

The invention discloses a scraper-type automatic filter and slag discharger, which comprises a base, an inner scraping filter and a pneumatic diaphragm pump are installed on the top of the base, and an electric control cabinet is installed on the side of the inner scraping filter. The side of the inner scraping filter is provided with an eccentric feed inlet and a circulation inlet, the bottom of the inner scraping filter is provided with a sewage outlet, and the bottom of the inner scraping filter is provided with a slag discharger, so The slag discharger is provided with a slag discharge port, a circulation outlet and a feed port, the sewage discharge port on the internal scraping filter communicates with the feed port on the slag discharger, and the air inlet of the pneumatic diaphragm pump is connected to the slag discharge port. The circulation outlet on the machine is connected, and the exhaust port of the pneumatic diaphragm pump is connected with the circulation inlet on the internal scraping filter. The invention can realize the online synchronous filtering and slag discharging operation while filtering and discharging slag, can realize high-efficiency circulating filtration, is small in size, light in weight, low in cost, simple in structure, has no wearing parts, and is convenient for maintenance.

Description

A scraper type automatic filter and slag discharger

technical field

The invention relates to the technical field of mechanical equipment, in particular to a scraper type automatic filter and slag discharger.

Background technique

The traditional slag discharge methods include sedimentation method or another automatic slag discharge centrifugal filter. The sedimentation method is to discharge the filtered slurry into the sedimentation tank, and then process the residue after discharging too much. The disadvantage is that it occupies the production area and is not environmentally friendly; the automatic slag discharge centrifugal filter uses mechanical centrifugal force to dry it into slag, but this equipment cannot On-line slag discharge requires high equipment cost.

The current slag discharge machine has the following problems: First, the slag discharge machine cannot realize the online slag discharge method of filtering and discharging slag, and the discharged residue contains high humidity, which is not conducive to the environmental protection of the residue. Secondly, the volume of the slag discharge machine Large and heavy, resulting in higher cost, and the structure of the slag discharger is complicated, and it is not easy to repair after damage. In addition, the power system adopted by the current slag discharger will cause environmental pollution, which is not conducive to the promotion of this product.

Contents of the invention

The purpose of the present invention is to solve the shortcomings in the prior art, and propose a scraper type automatic filter slag discharger.

In order to achieve the above object, the present invention adopts the following technical solutions:

A scraper-type automatic filter slag discharger, including a base, an inner scraping filter and a pneumatic diaphragm pump are installed on the top of the base, an electric control cabinet is installed on the side of the inner scraping filter, and the inner scraping filter The side of the filter is provided with an eccentric feed inlet and a circulation inlet, the bottom of the inner scraping filter is provided with a sewage outlet, and a slag discharger is provided below the inner scraper filter, and the slag discharger is It is provided with a slag discharge port, a circulation outlet and a feed port, the sewage discharge port on the internal scraping filter communicates with the feed port on the slag discharger, the air inlet of the pneumatic diaphragm pump is connected to the circulation outlet on the slag discharger In communication, the exhaust port of the pneumatic diaphragm pump communicates with the circulation inlet on the internal scraping filter.

Preferably, the sewage discharge port on the internal scraping filter is connected to the feed port on the slag discharger through a flange.

Preferably, the electric control cabinet is electrically connected to the internal scraping filter, the internal scraping filter and the pneumatic diaphragm pump respectively.

Preferably, the slag discharger includes a right-end frame, the outer surface of one end of the right-end frame is provided with a bearing outer ring pressure sleeve, and one side of the bearing outer ring pressure sleeve is provided with an air motor with a reducer. The lower end of the right-end frame is provided with a slag discharge port, and the top of the slag discharge port is provided with a slag discharge groove, and a bearing is installed on the inner side of one end of the right-end frame, and a round nut is provided on one side of the bearing. The other side is fixed with a skeleton oil seal, and the inside of the frame at the right end is provided with a double helix screw and a slag removing rod, and the double helix screw is arranged on one side of the slag removing rod, between the double helix screw and the slag removing rod A squeeze gap is provided, and the inner surface of the right end frame is fixedly equipped with a filter screen assembly and a slag filter screen, and the filter screen assembly is located on one side of the slag filter screen, and the lower end of the filter screen assembly is provided with a wedge-shaped A slag chamber empty sleeve is installed on the right frame, and a feed end frame is fixedly installed on the upper outer surface of the right frame, and the inside of the feed frame is provided with a slag slurry inlet. A left end cover is fixedly installed on the outer surface of the other end of the right end frame, and a push rod is installed on the left end cover.

The right-end frame is fixedly installed on the air motor with the reducer through the pressure sleeve of the outer ring of the bearing.

The double-helix screw is movably connected with the air motor and reducer through the rotating shaft, and the slag removing rod is installed on the rotating shaft.

The filter screen assembly includes a first bolt, a first cylinder and a filter screen, the first cylinder is in the shape of a semi-cylindrical shell, and a filter screen is installed inside the first cylinder, and the filter screen is a semi-cylindrical shell Cylindrical shell shape, one end of the first cylinder is threadedly inserted with a first bolt, the side of the first cylinder is provided with a feed port, the slag filter includes a pressing plate seat, a second cylinder , a slag pressing net, a second bolt and an arc-shaped pressing plate, the second cylinder is in the shape of a semi-cylindrical shell, one end of the second cylinder is fixedly connected to the end of the first cylinder away from the first bolt, the The other end of the second cylinder is threadedly connected with a second bolt, and a pressure plate seat is sleeved on the second cylinder, and an arc-shaped pressure plate is installed on the side of the pressure plate seat through a third bolt, and the second cylinder A slag-pressing net is installed inside the body, and the slag-pressing net is detachably connected to the second cylinder, and the slag-pressing net is clamped and fixed by the pressing plate seat and the arc-shaped pressing plate, and the filter screen and the slag-pressing net are wedge-shaped wire The mesh structure, the area of the filter mesh is larger than the area of the slag pressing mesh.

The second cylinder is connected to the first cylinder through fourth bolts.

Limit rods are installed on the sides of the first cylinder.

The double-helix screw includes a screw, the screw is a double-helix, variable pitch, conical structure, the screw is provided with a slagging groove, the helical structure of the screw is provided with a chip flute, and one end of the screw is fixed There is a connecting shaft, and the other end of the screw rod is fixedly sleeved with an annular boss.

The screw and the connecting shaft are an integral structure, and the connecting shaft is provided with a keyway; the left end of the screw is provided with a thimble hole; the pitch of the screw gradually decreases from the feeding end to the discharging end; The diameter gradually decreases from the feed end to the discharge end.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention realizes online synchronous filtration and slag discharge operation while filtering while discharging slag, and the discharged dry slag has low moisture content, which is convenient for environmental protection treatment;

2. The circulation inlet, circulation outlet and pneumatic diaphragm pump provided by the present invention can realize efficient circulation filtration and improve the quality of filtration;

3. The invention is small in size, light in weight, low in cost, simple in structure, has no wearing parts, and is easy to maintain; it adopts a pneumatic diaphragm pump, and the power source is an air motor, which is a green energy source, especially for chemical industries, and can be explosion-proof, No pollution;

4. The eccentric feeding port of the present invention facilitates the slurry to be screwed into the screen in the inner scraping filter.

5. The function of the filter screen in the present invention is to filter and separate the slag-containing slurry, and the function of the slag-pressing net is to filter and separate and press the slag. Under the helical push of the double-helix screw, the slag-containing slurry is first filtered and separated, and then dried The slag separation realizes the continuous operation of filtration separation and dry slag separation, which improves the production efficiency.

6. In the present invention, the online slag discharge method of filtering and slag discharge can be realized by setting the filter screen assembly, double-helix screw, slag chamber empty sleeve, slag pressing filter screen slag removing rod, slag discharge groove and wedge net. Moreover, after the residue in the solution is filtered and squeezed through multiple times, the water contained in it is very small, which is convenient for the environmental protection treatment of the residue.

7. The feeding end of the screw structure of the present invention is provided with a thimble hole, which is connected with the supporting thimble of the slag discharge machine to avoid frictional heating caused by line connection or surface connection, which affects the quality of the material; the discharge end is provided with a slag discharge ditch The trough, where the material slag formed after the material is filtered gathers, thus playing a sealing effect.

Description of drawings

Fig. 1 is the front view of a kind of scraper type automatic filter slag discharging machine that the present invention proposes;

Fig. 2 is the axonometric drawing of a kind of scraper type automatic filter slag discharging machine that the present invention proposes;

Figure 3 is a schematic diagram of the overall structure of the slag discharger;

Fig. 4 is a sectional view of the screen assembly and the slag screen;

Figure 5 is an axonometric view of the filter screen assembly and the pressurized slag screen;

Fig. 6 is the structural representation of twin-helix screw structure;

Fig. 7 is the screw tooth sectional view of the helix of the screw rod of double-helix screw structure;

Fig. 8 is a schematic diagram of the installation structure of the double-helix screw structure.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Referring to Figure 1-8, a scraper-type automatic filter slag discharger includes a base 5, an inner scraping filter 1 and a pneumatic diaphragm pump 3 are installed on the top of the base 5, and an electric diaphragm pump 3 is installed on the side of the inner scraping filter 1. Control cabinet 2, the side of the inner scraping filter 1 is provided with an eccentric feed inlet 12 and a circulation inlet 13, the bottom of the inner scraping filter 1 is provided with a sewage outlet 11, and the bottom of the inner scraping filter 1 is provided with a drain In the slag machine 4, the sewage outlet 11 on the internal scraping filter 1 is connected to the slag slurry inlet 2018 on the slag discharger 4, the air inlet of the pneumatic diaphragm pump 3 is connected to the circulation outlet 42 on the slag discharger 4, and the pneumatic The exhaust port of the diaphragm pump 3 communicates with the circulation inlet 13 on the internal scraper filter 1 .

The sewage outlet 11 on the inner scraping filter 1 is connected to the feed port 43 on the slag discharger 4 through a flange, and the electric control cabinet 2 is respectively connected to the inner scraping filter 1, the inner scraping filter 1 and the pneumatic diaphragm pump 3 electrical connections.

The slag discharger includes a right end frame 208, the outer surface of one end of the right end frame 208 is provided with a bearing outer ring press sleeve 2013, and one side of the bearing outer ring press sleeve 2013 is provided with an air motor with a reducer 2014, The lower end of the right end frame 208 is provided with a slag discharge port 2018, and the top of the slag discharge port 2018 is provided with a slag discharge groove 2017, and a bearing 2011 is installed on the inner side of one end of the right end frame 208, and one side of the bearing 2011 A round nut 2012 is provided, a skeleton oil seal 2010 is fixedly installed on the other side of the bearing 2011, a double helix screw 203 and a slag removal rod 209 are arranged inside the right end frame 208, and the double helix screw 203 is arranged on the slag removal On one side of the rod 209, an extrusion gap 2016 is arranged between the double-helix screw 203 and the slag removal rod 209, and the inner surface of the right end frame 208 is fixedly installed with a filter screen assembly 204 and a slag pressing screen 207, and The filter screen assembly 204 is positioned at one side of the slag filter screen 207, the lower end of the screen assembly 204 is provided with a wedge-shaped net 2019, the slag chamber empty sleeve 206 is installed on the right end frame 208, and the right end frame 208 A feed end frame 205 is fixedly installed on the outer surface of the upper end, and a slag slurry inlet 2015 is provided inside the feed end frame 205, and a left end cover 202 is fixedly installed on the outer surface of the other end of the right end frame 208, and A push rod 201 is installed on the left end cover 202 .

The right end frame 208 is fixedly installed on the air motor with the reducer 2014 through the bearing outer ring pressure sleeve 2013 .

The double-helix screw 203 is movably connected with the air motor and reducer 2014 through a rotating shaft, and the slag removing rod 209 is installed on the rotating shaft.

The filter screen assembly 204 includes a first bolt 301, a first cylinder 302 and a filter screen 303, the first cylinder 302 is in the shape of a semi-cylindrical shell, and a filter screen 303 is installed inside the first cylinder 302 , the filter screen 303 is in the shape of a semi-cylindrical shell, one end of the first cylinder 302 is threadedly inserted with a first bolt 301, a side of the first cylinder 302 is provided with a feed port, the pressure The slag filter screen 207 includes a pressing plate seat 304, a second cylinder 305, a slag pressing net 306, a second bolt 307 and an arc-shaped pressing plate 308, the second cylinder 305 is a semi-cylindrical shell, and the second cylinder 305 One end of the first cylinder 302 is fixedly connected to an end away from the first bolt 301, the other end of the second cylinder 305 is threadedly connected with a second bolt 307, and a pressure plate is sleeved on the second cylinder 305 Seat 304, the side of the pressure plate seat 304 is equipped with an arc-shaped pressure plate 308 through the third bolt, and the inside of the second cylinder 305 is equipped with a slag pressing net 306, and the slag pressing net 306 and the second cylinder 305 Detachable connection, the slag pressing net 306 is clamped and fixed by the pressing plate seat 304 and the arc-shaped pressing plate 308, the filter screen 303 and the slag pressing net 306 are wedge-shaped wire mesh structures, and the area of the filtering net 303 is larger than the slag pressing net 306 square feet.

The second cylinder 305 is connected to the first cylinder 302 through a fourth bolt.

A limiting rod 309 is mounted on a side of the first cylinder 302 .

The double-helix screw 203 includes a screw 402. The screw 402 is a double-helix, variable pitch, and conical structure. The screw 402 is provided with a slagging groove 403, and the helical structure of the screw 402 is provided with a chip groove 405. One end of the screw 402 is fixed with a connecting shaft 401 , and the other end of the screw 402 is fixedly sleeved with an annular boss 404 .

The screw 402 and the connecting shaft 401 are an integral structure, and the connecting shaft 401 is provided with a keyway; the left end of the screw 402 is provided with a thimble hole 406; the screw pitch of the screw 402 gradually decreases from the feed end to the discharge end. Small; the diameter of the screw 402 gradually decreases from the feed end to the discharge end.

Working principle: The slurry enters the inner scraping filter 1 from the eccentric feeding port 12 on the inner scraping filter 1, and the eccentric feeding port 12 is convenient for the slurry to be screwed into the filter screen inside the inner scraping filter 1, The slurry filtered by the inner scraping filter 1 flows into the slagging machine 4 through the sewage outlet 11 on the inner scraping filter 1 and the feed port 43 on the slagging machine 4, and after being discharged by the slagging machine 4, it contains The dry slag with very low moisture content is discharged from the slag outlet 2018 on the slag discharger 4, and the separated liquid is sucked by the pneumatic diaphragm pump 3 to the circulation inlet 13 of the inner scraping filter 1 through the circulation port 42 of the slag discharger 4 And re-filtering, so as to realize the online synchronous filtering and slag discharging operation while filtering and discharging slag at the same time.

The left end cover 202, feed end frame 205, slag chamber empty sleeve 206 and right end frame 208 of the slag discharger can form a stable and airtight space to provide a stable environment for the slag discharge process. The device 2014 drives the double-helix screw 203 to rotate, and then discharges the slag-containing slurry after internal scraping and filtering into the confined space through the slag slurry inlet 2015. When the double-helix screw 203 rotates, due to the material contained in the double-helix screw The volume of the groove keeps getting smaller from left to right, and it plays the role of conveying, squeezing and pressing the slag-containing slurry, while the wedge-shaped net 2019 set at the lower part of the filter screen assembly 204 plays a role of filtering, and the filtering of the slag-pressing filter 207 The area is smaller than the filter area of the filter screen assembly 204, and it plays the role of extrusion and pressing. The extruded slag enters the slag discharge groove 2017 through the extrusion gap 2016, and is discharged to the slag discharge groove under the movement of the slag removal lever 209. The port 2018, under the action of gravity, discharges out of the container, and the ejector rod 201 and the bearing 2011 are used to support the double helix screw 203.

The double-helix screw 203 is assembled inside the first cylinder 302 and the second cylinder 305, the function of the filter screen 303 is to filter and separate the slag-containing slurry, and the function of the slag-pressing screen 306 is to filter and separate and press slag; Under the helical push of the screw, the slag-containing slurry is firstly filtered and separated, and then the dry slag is separated, which realizes the continuous operation of filtration separation and dry slag separation, and improves the production efficiency.

The volume of the mixed pulp and slag flowing into the chip tank 405 keeps decreasing, and at the same time, the aqueous solution smaller than the pores of the filter screen is separated out of the slag discharger, and the slag larger than the pores of the filter screen is pushed to the slag discharge groove 403 and discharged, thereby playing a role The function of slag discharge, so as to realize the continuous operation of filter slag discharge, greatly improve the efficiency of filter slag discharge, and the operation is very simple; the feeding end is provided with a thimble hole, which is connected with the thimble of the slag discharge machine to avoid The frictional heating caused by line connection or surface connection affects the quality of the material; the discharge end is equipped with a slag discharge groove, and the material slag formed after the material is filtered gathers here, thereby achieving the effect of sealing.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (10)

1. A scraper type automatic filter slag discharger, comprising a base (5), is characterized in that the top of the base (5) is equipped with an inner scraping filter (1) and a pneumatic diaphragm pump (3), the An electric control cabinet (2) is installed on the side of the inner scraping filter (1), and an eccentric feed inlet (12) and a circulation inlet (13) are arranged on the side of the inner scraping filter (1). The bottom of the inner scraping filter (1) is provided with a sewage outlet (11), and the bottom of the inner scraping filter (1) is provided with a slagging machine (4), and the inner scraping filter (1) The sewage outlet (11) on the top is connected with the slag slurry inlet (2015) on the slagging machine (4), and the air inlet of the pneumatic diaphragm pump (3) is connected with the circulation outlet (42) on the slagging machine (4). ) is communicated, and the exhaust port of the pneumatic diaphragm pump (3) is communicated with the circulation inlet (13) on the inner scraping filter (1). 2. A scraper type automatic filter slag discharger according to claim 1, characterized in that, the waste discharge port (11) on the filter (1) and the slag on the slag discharger (4) are removed The slurry inlet (2015) is connected through a flange; the electric control cabinet (2) is electrically connected with the internal scraping filter (1) and the pneumatic diaphragm pump (3). 3. A scraper-type automatic filter slag discharger according to claim 1, characterized in that, the slag discharger comprises a right end frame (208), and an outer surface of one end of the right end frame (208) is arranged There is a bearing outer ring pressure sleeve (2013), and one side of the bearing outer ring pressure sleeve (2013) is provided with an air motor with a reducer (2014), and the lower end of the right end frame (208) is provided with a slag discharge port (2018 ), and the top of the slag outlet (2018) is provided with a slag discharge groove (2017), and a bearing (2011) is installed on the inner side of one end of the right end frame (208), and one side of the bearing (2011) is provided with a circle Nut (2012), the other side of the bearing (2011) is fixed with a skeleton oil seal (2010), and the inside of the right end frame (208) is provided with a double helix screw (203) and a slag removal rod (209), And the double-helix screw (203) is arranged on one side of the slag removal rod (209), and an extrusion gap (2016) is arranged between the double-helix screw (203) and the slag removal rod (209), and the right end frame The inner surface of (208) is fixedly installed with filter screen assembly (204) and pressure residue filter screen (207), and filter screen assembly (204) is positioned at the side of pressure residue filter screen (207), and described filter screen assembly (204 ) is provided with a wedge-shaped net (2019), the slag chamber empty sleeve (206) is installed on the right end frame (208), and the upper end outer surface of the right end frame (208) is fixedly equipped with a feed end frame (205), the inside of the feed end frame (205) is provided with a slurry inlet (2015), the outer surface of the other end of the right end frame (208) is fixedly installed with a left end cover (202), and the left end A push rod (201) is installed on the cover (202). 4. A scraper type automatic filter slag discharger according to claim 3, characterized in that the right end frame (208) is fixedly installed on the air motor with reducer (2014) through the bearing outer ring pressure sleeve (2013) )superior. 5. A scraper type automatic filter slag discharger according to claim 3, characterized in that, the double-helix screw (203) is movably connected with the air motor with a reducer (2014) through a rotating shaft, and the slag removal rod (209) is installed on the rotating shaft. 6. A scraper type automatic filter slag discharger according to claim 3, characterized in that, the filter screen assembly (204) comprises a first bolt (301), a first cylinder (302) and a filter screen (303), the first cylinder (302) is in the shape of a semi-cylindrical shell, and a filter screen (303) is installed inside the first cylinder (302), and the filter screen (303) is in the shape of a semi-cylindrical shell , one end of the first cylinder (302) is threadedly inserted with a first bolt (301), the side of the first cylinder (302) is provided with a feed port, and the slag filter (207 ) includes a pressing plate seat (304), a second cylinder (305), a slag pressing net (306), a second bolt (307) and an arc pressing plate (308), and the second cylinder (305) is a semi-cylindrical shell shape, one end of the second cylinder (305) is fixedly connected to the end of the first cylinder (302) away from the first bolt (301), and the other end of the second cylinder (305) is screwed to a The second bolt (307), the second cylinder (305) is sleeved with a pressure plate seat (304), and the side of the pressure plate seat (304) is equipped with an arc-shaped pressure plate (308) through the third bolt, so A slag net (306) is installed inside the second cylinder (305), and the slag net (306) is detachably connected to the second cylinder (305). (304) and the arc-shaped pressing plate (308) are clamped and fixed, and the filter screen (303) and the slag-pressing screen (306) are wedge-shaped wire mesh structures, and the area of the filter screen (303) is larger than the slag-pressing screen (306) area. 7. A scraper type automatic filter slag discharger according to claim 6, characterized in that, the second cylinder (305) is connected to the first cylinder (302) by a fourth bolt. 8. A scraper type automatic filter and slag discharger according to claim 6, characterized in that, a limit rod (309) is installed on the side of the first cylinder (302). 9. A scraper-type automatic filter slag discharger according to claim 3, characterized in that the double-helix screw (203) comprises a screw (402), and the screw (402) is a double-helix, variable pitch, conical structure, the screw (402) is provided with a slagging groove (403), the spiral structure of the screw (402) is provided with a chip flute (405), and one end of the screw (402) is fixed with a connecting shaft (401), the other end of the screw (402) is fixedly sleeved with an annular boss (404). 10. A scraper type automatic filter slag discharger according to claim 1, characterized in that, the screw (402) and the connecting shaft (401) are an integral structure, and the connecting shaft (401) is provided with a keyway; The left end of the screw (402) is provided with a thimble hole (406); the pitch of the screw (402) gradually decreases from the feed end to the discharge end; Its diameter gradually decreases.