CN100496755C - Environment-friendly energy-saving multi-functional lime pulverizer - Google Patents

Abstract

The invention discloses an energy-saving and environment-friendly multifunctional lime pulverizer. It includes bag filter room, ball mill, powder separator, main powder separator, cyclone dust collector, grinding tail separator, powder separator fan, pre-mill classifier fan, dust exhaust hood and pre-mill classifier, etc. The above-mentioned equipment is connected as a whole through various air supply pipes, return air pipes, discharge pipes, dust suction air pipes, air supply pipes, and material delivery pipes, so that it has the function of suction-type phase pneumatic conveying of materials, and then To achieve the purpose of energy saving and environmental protection. The invention is characterized by novel structure and reasonable design; good equipment integrity and long service life; no dust spots, which is beneficial to environmental protection; various products of different grades and different uses can be produced, and the energy-saving effect is obvious. It is suitable for the installation and use of various lime product manufacturers.

Description

Energy-saving and environment-friendly multifunctional lime pulverizer

technical field

The invention relates to lime grinding equipment, in particular to an energy-saving and environment-friendly multifunctional lime grinding machine.

Background technique

At present, most of the grinding equipment used by domestic and foreign lime industry manufacturers use ball mills, cyclone separators, bucket elevators and screw conveyors to complete the lime grinding work. From the technical point of view, the ball mill is an overflow milling method, and the cyclone powder separator is a closed-loop powder selection method. It has the following deficiencies: first, the integrity of the equipment is poor, and more auxiliary equipment is required; second, there are too many dust points, which is not conducive to environmental protection; third, the temperature of the material is too high, which is easy to scald the packaging; fourth, the moisture content of the material is high , the phenomenon of sticking the inner wall of the equipment is easy to appear; fifth, there is a lack of necessary separation devices, and only a single primary product can be produced. The utility model patent "a kind of suction type lime separator" (02210151.9) that I applied for in 2002 does not solve the above problems well.

Contents of the invention

The purpose of the present invention is to provide a method that can effectively overcome the above-mentioned problems, adopts suction-type phase-phase pneumatic conveying, and has less auxiliary equipment; there is basically no dust point, which is beneficial to environmental protection; the temperature of the material is moderate; the phenomenon of material sticking to the inner wall of the equipment can be eliminated, and It is an energy-saving and environment-friendly multifunctional lime grinding machine that can separate and produce various products of different grades and purposes.

The technical scheme of the present invention is such that the energy-saving and environment-friendly multi-functional lime pulverizer includes a cloth bag filter room, a ball mill, a powder separator, a main powder separator, a cyclone dust collector, a grinding tail separator, a powder separator fan, and a pre-grinding machine. Classifier fans, dust hoods and pre-mill classifiers;

The upper left part of the bag filter room is equipped with a cyclone dust collector air duct, and the other end of the cyclone dust collector air duct is connected to the upper part of the cyclone dust collector; the middle part of the cyclone dust collector air duct is connected to There is a circulation system air delivery pipe, and the lower end of the circulation system air delivery pipe is connected to the fan outlet of the powder classifier; the upper middle part of the circulation system air delivery pipe is connected to the cyclone dust collector through a connecting pipe. The circulation system air delivery pipe at the upper part of the connection is equipped with a circulation system air delivery pipe windshield, and the connecting pipe near this connection is equipped with a cyclone dust collector windshield; the lower middle part of the circulation system air delivery pipe and the closed circuit The air circulation pipe is connected to each other, and the windshield of the air circulation pipe is installed on the closed circulation air pipe close to this connection;

The upper part of the powder classifier is equipped with a pre-grinding classifier dust collector air collection pipe, and the upper end of the pre-milling classifier dust collector air collector is equipped with a pre-milling classifier dust collector air collection cap, and the pre-milling classifier dust collector air collection cap is installed. The air return pipe of the pre-grinding classifier is installed on the wind cap of the collector, and the other end of the return air pipe of the pre-milling classifier is connected with the fan of the pre-milling classifier; the middle part of the powder classifier is the powder classifier;

The lower side of the powder separator is equipped with an external discharge pipe, and the other end of the external discharge pipe is connected with the external ash hopper; the bottom of the powder separator is equipped with a main powder separator ash hopper; The bottom of the cyclone dust collector is equipped with a cyclone dust collector dust hopper; the bottom of the external dust collector dust collector, the main powder separator dust collector and the cyclone dust collector dust collector are equipped with primary product bagging machines, and The dust collection hopper outside the body, the dust collection bucket of the main powder separator and the dust collection bucket of the cyclone dust collector are all arranged in the dust exhaust hood;

The rear part of the powder separator is equipped with a three-way air duct, and the longitudinal pipe of the three-way air duct is connected with the dust suction duct; The other end of the tail air supply pipe is connected with the said grinding tail separator; the left end of the transverse pipe of the three-way air duct is equipped with a pre-grinding air supply pipe, and the other end of the pre-milling air supply pipe is connected with the said pre-milling grading The middle part of the machine is connected;

The side of the powder classifier is equipped with a grinding tail feeding pipe, and the other end of the grinding tail feeding pipe is connected to the upper end of the grinding tail separator; the middle part of the grinding tail separator is connected to the The left part of the ball mill is connected, and the right part of the ball mill is connected with the pre-mill classifier;

The fan of the pre-grinding classifier is also equipped with a pre-grinding classifier air supply pipe, and the pre-milling classifier air supply pipe is provided with a pre-milling classifier fan air regulating plate; the rear upper part of the bag dust filter room is equipped with The pre-grinding classifier fan decompression pipe, the other end of the pre-milling classifier fan decompression pipe is connected with the pre-milling classifier air supply pipe.

The upper part of the bag dust filter chamber is the air distribution space, and the side part of the air flow distribution space is equipped with the classifier fan decompression pipe as mentioned above; The porous air distribution plate is equipped with a plurality of cloth bag connecting pipes facing each other up and down, and cloth bags are installed between the facing cloth bag connecting pipes; the lower porous air distribution plate is equipped with a dust collecting hopper for a bag dust filter room, and a dust collecting hopper for the bag dust filter room The lower part of the dust bagging machine is equipped with a fine powder bagging machine; the lower part of the bag dust filter room is equipped with a dust suction pipe, and the other end of the dust suction pipe is connected with the pre-grinding classifier outside the bag dust filter room.

The main powder separator includes the air collecting cap of the main powder separator, the air collecting pipe of the main powder separator, the assembly of the main powder separator, the cone distributor, the cross bracket of the cone distributor, the air flow feeding pipe, the secondary Powder selection chamber, screw conveyor, dust suction duct and dust collecting hopper of the main powder selection machine; the middle part of the air collection cap of the main powder selection machine is the main powder selection machine air collection pipe, and the main powder selection machine air collection pipe is connected There is an air duct of the main powder separator, the other end of the air duct of the main powder separator is connected with the suction port of the fan of the powder separator, and the air duct of the main powder separator near the suction port of the fan of the powder separator There is a total air volume adjustment door on the top; the lower part of the air collecting pipe of the main powder separator is the main powder separator assembly, and the lower part of the main powder separator assembly is equipped with an air flow feeding pipe, and the air feeding pipe The upper end is equipped with the cross bracket of the cone distributor, and the upper part of the cross bracket of the cone distributor is equipped with the cone distributor; the lower part of the air delivery pipe is provided with a partition, and the upper part of the partition is The air flow feeding pipe communicates with the grinding tail feeding pipe as mentioned above; the lower part of the partition is the main air supply pipe for the secondary powder selection; the lower end of the main air supply pipe for the secondary powder selection is connected to the suction The dust air pipes are connected, and the side walls of the main air supply pipes for the secondary powder selection are respectively provided with air supply holes for the left and right air supply pipes of the secondary powder selection chamber, and are respectively connected to the outside of the main air supply pipes for the secondary powder selection. The right air duct for secondary powder selection and the left air duct for secondary powder selection are connected; room; the side lower part of the secondary powder selection chamber is equipped with a coarse powder return pipe, and extends out of the main powder separator to connect with the coarse powder return pipe on the pre-grinding classifier; one side of the screw conveyor Connected with the external discharge pipe as mentioned above, the external discharge pipe extends out of the main powder separator and connects with the external ash collection hopper as mentioned above; the other side of the screw conveyor is also equipped with an internal discharge pipe , the end of the discharge pipe in the body is equipped with an air flow blocking movable baffle; the lower part of the main powder separator is equipped with the dust collecting hopper of the main powder separator, and the lower part of the dust collecting hopper of the main powder separator is located as before In the dust exhaust hood; the dust suction duct is installed on the upper part of the dust collecting hopper of the main powder separator, and the right end of the dust suction duct is connected with the three-way air duct as mentioned above, and the dust suction The left end of the air duct stretches into the dust exhaust hood as mentioned above through the elbow, and the elbow of the dust suction air duct is provided with a dust suction air duct air regulating plate.

The upper part of the secondary powder selection chamber is provided with an inspection hole, and the inspection hole is provided with a closed cover; The secondary powder selection air supply hole is equipped with an air regulating baffle; the lower part of the secondary powder selection chamber is connected with the secondary powder selection right air supply pipe and the secondary powder selection chamber as mentioned above. The left air supply pipe is connected.

The pre-grinding classifier includes a feeding hopper, a dust exhaust cover for the feeding hopper, a pre-milling classifier assembly, a pre-milling classifier screw feeder, a pre-milling classifier cone distributor, and a pre-milling classifier airflow delivery pipe , coarse powder collection hopper, wind classification chamber, ball mill screw feeder and pre-grinding classifier feeding pipe; said feeding hopper is equipped with said feeding hopper dust hood, and the upper part of the feeding hopper dust hood is equipped with There is a dust suction duct, and the other end of the dust suction duct is connected to the coarse powder dust collection hopper; the rear part of the dust hood of the feeding hopper is the pre-grinding classifier assembly, and the pre-grinding classifier assembly is The upper part of the machine assembly is connected with the feeding pipe of the pre-grinding classifier as mentioned above, the lower part of the pre-milling classifier assembly is the air feeding pipe of the pre- The above-mentioned cone feeder of the pre-mill classifier, the lower part of the air-flow feeding pipe of the pre-mill classifier is a wind classification chamber; The right part of the feeder is placed in the wind classifying room as mentioned above, and the closed cover of the pre-grinding classifier screw feeder is arranged above it; There are air distribution holes on the air supply pipe of the pre-grinding classifier; the middle part of the coarse powder ash collection hopper is longitudinally provided with a coarse powder ash collection hopper wind-blocking partition; separated by a coarse powder ash collection hopper wind-blocking partition The coarse powder discharge choke plate is installed on the left wall of the right coarse powder collecting hopper, the upper part of the right wall of the right coarse powder collecting hopper is the air supply pipe before grinding as mentioned above, and the right coarse powder collecting ash The middle part of the right side wall of the bucket is the coarse powder return pipe as mentioned above, the end of the coarse powder return pipe is equipped with a coarse powder return pipe choke plate, and the right coarse powder ash collection hopper is also equipped with a ball mill. The air supply channel communicates with the hollow shaft air duct of the ball mill; the lower part of the coarse powder collecting hopper is the ball mill screw feeder, and the right end of the ball mill screw feeder is connected with the ball mill. There is a hollow shaft air duct for the ball mill at the connection; the upper side of the pre-mill classifier is equipped with a pre-mill classifier feed pipe, and the other end of the pre-mill classifier feed pipe is connected to the pre-grind classifier dust collector. The lower part of the dust faller of the pre-grinding classifier is the ash collection hopper of the pre-grinding classifier, and the lower part of the dust faller of the pre-mill classifier communicates with the screw conveyor; The upper left part is equipped with the exhaust pipe of the screw conveyor, and the other end of the exhaust pipe of the screw conveyor is connected with the return air pipe of the pre-grinding classifier as mentioned above;

The connection between the ball mill and the pre-grinding classifier is equipped with a rubber sealing ring, and the left end of the ball mill body is fixed with a drive frame for the screw conveyor of the ball mill. The main shaft of the ball mill is fixedly connected; the ball mill feeding pipe at the right end of the ball mill is equipped with a left-handed helical leaf opposite to the right-handed helical leaf in the hollow shaft at the left end of the ball mill; the ball mill feeding pipe communicates with the separation chamber of the grinding tail separator, The inner and lower part of the separation chamber is provided with a waste material slide plate, and the waste material slide plate is three pieces and arranged in three equal parts; the inner and lower part of the separation chamber is connected with the grinding tail air supply pipe as mentioned above; The bottom of the separation chamber is equipped with a waste hopper, and the waste hopper is provided with a movable wind baffle for the waste discharge port.

The total air volume adjustment door and the fan adjustment door of the pre-grinding classifier have the same structure. It is mounted on the pipeline through a pin shaft. There is an air volume adjustment door and an air adjustment handle.

The present invention is characterized by novel structure and reasonable design; good equipment integrity and long service life; no dust spots, which is beneficial to environmental protection; various products of different grades and different uses can be produced, and the energy-saving effect is obvious. It is suitable for the installation and use of various lime product production enterprises.

Description of drawings

Figure 1 is a schematic front view of the overall structure of an energy-saving and environment-friendly multifunctional lime pulverizer.

Figure 2 is a schematic rear view of the overall structure of an energy-saving and environment-friendly multifunctional lime pulverizer.

Fig. 3 is a schematic cross-sectional diagram of a right side view of an energy-saving and environment-friendly multifunctional lime pulverizer.

Figure 4 is a schematic cross-sectional view of the powder classifier in the direction of C-C.

Fig. 5 is a schematic cross-sectional view along the direction D-D of the pre-grinding classifier.

Figure 6 is a schematic cross-sectional view of the H-H direction of the powder classifier.

Fig. 7 is a schematic cross-sectional view of the G-G direction of the grinding tail separator.

Fig. 8 is a schematic view in direction A of the driving frame of the screw conveyor of the ball mill.

Fig. 9 is a schematic cross-sectional view of the cross bracket of the conical distributor in N-N direction.

Fig. 10 is a schematic cross-sectional view of the airflow partition L-L.

Figure 11 is a schematic cross-sectional view of the secondary powder selection chamber along the direction I-I.

Fig. 12 is a schematic cross-sectional view of the classifier before grinding along the direction F-F.

Figure 13 is a schematic sectional view of the E-E direction of the pre-grinding classifier.

Fig. 14 is a schematic sectional view along the B-B direction of an energy-saving and environment-friendly multifunctional lime pulverizer.

Fig. 15 is a schematic cross-sectional view along the J-J direction of the secondary powder selection chamber.

Fig. 16 is a schematic cross-sectional view of the secondary powder selection chamber along K—K direction.

Figure 17 is a schematic front view of the total air volume adjustment door and the fan adjustment door of the pre-grinding classifier.

Fig. 18 is a schematic top view sectional view of the total air volume adjustment door and the fan adjustment door of the pre-grinding classifier.

Among them: 1 bag dust filter room, 2 ball mill, 3 powder separator, 4 cyclone dust collector, 5 grinding tail separator, 6 powder separator fan, 7 pre-mill classifier fan, 8 dust exhaust cover, 9 primary product bagging machine , 10 Air supply pipe before grinding, 11 Feeding hopper, 12 Dust exhaust cover for feeding hopper, 13 Classifier before grinding, 14 Air duct for cyclone dust collector, 15 Air duct for circulation system, 16 Pressure reducing pipe for fan of classifier before milling, 17 connecting pipe, 18 feeding pipe for grinding tail, 19 air supply pipe for grinding tail, 20 air feeding pipe for main separator, 21 closed loop air feeding pipe, 22 feeding pipe for pre-grinding classifier, 23 return air for pre-milling classifier Pipe, 24 Exhaust pipe of screw conveyor, 25 Air collection cap of dust faller of classifier before grinding, 26 Air collection pipe of dust faller of classifier before mill, 27 Coarse powder return pipe, 28 Tee air pipe, 29 Mill Front classifier fan air regulating plate, 30 air distribution space, 31 porous air distribution plate, 32 cloth bag connecting pipe, 33 cloth bag, 34 cloth bag dust collection hopper, 35 fine powder bagging machine, 36 dust suction pipe, 37 cyclone dust removal Wind deflector, 38 wind deflector of closed circuit circulation air duct, 39 wind deflector of circulation system air duct, 40 total air volume adjustment door, 41 fan adjustment door of classifier before grinding, 42 main powder separator assembly, 43 cone Distributor, 44 air flow conveying pipe, 45 clapboard, 46 ash collecting hopper of dust faller of pre-grinding classifier, 47 screw conveyor, 48 dust suction duct, 49 dust collecting hopper of main powder selection machine, 50 dust suction Air duct air regulating plate, 51 pre-grinding classifier dust reducer, 52 dust suction duct, 53 pre-milling classifier assembly, 54 pre-milling classifier screw feeder, 55 pre-milling classifier cone distributor, 56 Airflow feeding pipe of pre-grinding classifier, 57 Coarse powder discharge choke plate, 58 Coarse powder return pipe choke plate, 59 Coarse powder ash collection hopper, 60 Air supply pipe of pre-milling classifier, 61 Air classification chamber, 62 Air distribution hole, 63 Coarse powder collection ash hopper wind blocking partition, 64 Ball mill screw conveyor, 65 Rubber closed ring, 66 Ball mill hollow shaft air duct, 67 Ball mill screw conveyor drive frame, 68 Left-handed spiral blade, 69 Ball mill feeding pipe, 70 waste sliding plate, 71 separation chamber, 72 waste hopper, 73 waste discharge outlet movable wind choke, 74 fine powder speed regulating motor, 75 coarse powder speed regulating motor, 76 external discharge pipe, 77 internal body Discharge pipe, 78 air flow blocking movable baffle, 79 dust collecting hopper of cyclone dust collector, 80 secondary powder selection chamber, 81 closed cover, 82 inspection hole, 83 secondary powder selection air supply chamber, 84 air adjustment baffle, 85 secondary powder selection air supply hole, 86 secondary powder selection distribution air chamber, 87 secondary powder selection right air supply duct, 88 secondary powder selection left air supply duct, 89 secondary powder selection chamber left and right air supply duct air supply Hole, 90 main air supply pipe for secondary powder selection, 91 air flow partition, 92 cross bracket for conical distributor, 93 air volume adjustment door air adjustment plate, 94 air volume adjustment door adjustment handle, 95 ball mill internal air supply channel, 96 The closed cover of the screw feeder of the pre-grinding classifier, the 97 external ash collecting hopper, the 98 main powder collecting machine wind cap, and the 99 main powder collecting machine air collecting pipe.

Detailed ways.

As shown in accompanying drawings 1, 2, and 14, the upper left part of the baghouse 1 is provided with a cyclone dust collector air delivery pipe 14, and the other end of the cyclone dust collector air delivery pipe 14 is connected to the cyclone dust collector 4. The upper part is connected; the middle part of the cyclone dust collector air delivery pipe 14 is connected with a circulation system air delivery pipe 15, and the lower end of the circulation system air delivery pipe 15 is connected with the outlet of the powder separator fan 6; The upper middle part of the circulation system air delivery pipe 15 is connected with the cyclone dust collector 4 through the connecting pipe 17, and the circulation system air delivery pipe windshield 39 is installed on the circulation system air delivery pipe 15 at the upper part of this connection, near this connection The connecting pipe 17 at the place is equipped with a cyclone dust collector windshield 37; the lower middle part of the circulation system air delivery pipe 15 is connected with the closed-circuit circulation air delivery pipe 21, and the closed-circuit circulation air delivery pipe 21 close to this connection is installed There is a windshield 38 for the closed-circuit circulation air duct;

The upper part of the powder classifier 3 is equipped with a pre-grinding classifier dust faller air collection pipe 26, and the upper end of the pre-grinding classifier dust faller air collector 26 is equipped with a pre-grinding classifier dust faller air collection cap 25. The classifier dust collector air collecting cap 25 is equipped with a pre-grinding classifier return air duct 23, and the other end of the pre-milling classifier return air duct 23 is connected with the pre-grinding classifier fan 7; The middle part is the main powder selection machine;

The lower side of the powder separator 3 is equipped with an in vitro discharge pipe 76, and the other end of the in vitro discharge pipe 76 is connected with an in vitro dust collection bucket 97; the bottom of the powder separator 3 is equipped with a main powder separator Ash collecting hopper 49; the bottom of said cyclone dust collector 4 is equipped with cyclone dust collector dust collecting hopper 79; The lower part is equipped with a primary product bagging machine 9, and the dust collecting hopper 97 outside the body, the dust collecting bucket 49 of the main powder separator and the dust collecting bucket 79 of the cyclone dust collector are all arranged in the dust discharge cover 8;

The rear portion of the powder separator 3 is equipped with a three-way air duct 28, and the longitudinal pipe of the three-way air duct 28 is connected with the dust suction air duct 48; Air supply pipe 19, the other end of grinding tail air supply pipe 19 is connected with described grinding tail separator 5; The other end of 10 is connected with the middle part of described pre-grinding classifier 13;

The side of the powder classifier 3 is equipped with a grinding tail feeding pipe 18, and the other end of the grinding tail feeding pipe 18 is connected with the upper end of the grinding tail separator 5; the grinding tail separator 5 The middle part is connected with the left part of the ball mill 2, and the right part of the ball mill 2 is connected with the pre-mill classifier 13;

As shown in accompanying drawing 3, described pre-grinding classifier blower fan 7 is also equipped with pre-milling classifier air supply duct 60, and pre-milling classifier air supply duct 60 is provided with pre-milling classifier fan air regulating plate 29; The back upper part of the bag dust filter chamber 1 is equipped with a pre-grinding classifier fan decompression pipe 16, and the other end of the pre-milling classifier fan decompression pipe 16 is connected with the pre-grinding classifier air supply pipe 60.

As shown in accompanying drawing 3, the upper part in the bag dust filter room 1 is an air distribution space 30, and the side of the air flow distribution space 30 is equipped with a classifier fan decompression pipe 16 as mentioned above; The upper middle part and the lower part are equipped with porous air distribution plates 31 respectively, and a pair of porous air distribution plates 31 are equipped with a plurality of cloth bag connecting pipes 32 facing up and down, and cloth bags 33 are arranged between the facing cloth bag connecting pipes 32; The dust collection hopper 34 of the bag filter chamber is installed under the air distribution plate 31, and the fine powder bagging machine 35 is installed at the lower part of the dust collection hopper 34 of the bag filter chamber; 36. The other end of the dust suction pipe 36 is connected with the pre-grinding classifier 13 outside the baghouse 1.

As shown in accompanying drawing 4,6,9, described main powder separator comprises main powder collector air collecting cap 98, main powder collector air collection pipe 99, main powder separator assembly 42, cone distributor 43, Conical distributor cross bracket 92, air flow feed pipe 44, secondary powder selection chamber 80, screw feeder 47, dust suction air duct 48 and main powder selection machine ash hopper 49; the main powder selection machine The middle part of the wind collecting cap 98 is the main powder selection machine air collection pipe 99, the main powder selection machine air collection pipe 99 is connected with the main powder selection machine air delivery pipe 20, and the other end of the main powder selection machine air delivery pipe 20 is connected with the main powder selection machine air delivery pipe 20. The suction port of the fan 6 of the powder separator described above is connected, and a total air volume regulating door 40 is installed on the air duct 20 of the main powder separator near the suction port of the fan 6 of the powder separator; The bottom of 99 is said main powder separator assembly 42, and the bottom of main powder separator assembly 42 is equipped with air flow feeding pipe 44, and the upper end of air flow feeding pipe 44 is equipped with described conical distributor cross support Frame 92, the top of cone distributor cross bracket 92 is equipped with described cone distributor 43; It communicates with the grinding tail feeding pipe 18 as mentioned above; the bottom of the partition plate 45 is the main air supply pipe 90 for the secondary powder selection; the lower end of the main air supply pipe 90 for the secondary powder selection is connected with the dust suction The air duct 48 communicates with each other, and the side walls of the secondary powder selection main air supply duct 90 are respectively provided with the left and right air supply duct air supply holes 89 of the secondary powder selection chamber, and are respectively connected with the secondary powder selection main air supply duct. The right air duct 87 for the secondary powder selection outside 90 communicates with the left air duct 88 for the secondary powder selection; Described secondary powder selection chamber 80; the side lower part of described secondary powder selection chamber 80 is equipped with coarse powder return pipe 27, and stretches out of the main powder separator and returns to the coarse powder on the pre-grinding classifier 13 The material pipe 27 is connected; one side of the screw feeder 47 is connected with the external discharge pipe 76 as mentioned above, and the external discharge pipe 76 stretches out of the main powder separator and is connected with the external dust collection hopper 97 as previously described. Connect; the other side of the screw feeder 47 is also equipped with a discharge pipe 77 in the body, and the end of the discharge pipe 77 in the body is equipped with an air flow blocking movable baffle 78; the bottom of the main powder separator is equipped with the The dust collection hopper 49 of the main powder separator, the bottom of the dust collector 49 of the main powder separator is located in the dust discharge cover 8 as mentioned above; Dust air duct 48, the right end of the dust suction air duct 48 is connected with the three-way air duct 28 as mentioned above, and the left end of the dust suction air duct 48 stretches in the dust exhaust hood 8 as mentioned above through the elbow, The elbow of the dust suction duct 48 is provided with a dust suction duct air regulating plate 50 .

As shown in accompanying drawings 11, 15, 16, and 10, an inspection hole 82 is provided on the top of the secondary powder selection chamber 80, and a closed cover 81 is provided on the inspection hole 82; The inner upper part is provided with an air flow partition 91, and the inner middle part of the secondary powder selection chamber 80 has a secondary powder selection air supply hole 85, and the secondary powder selection air supply hole 85 is provided with an air regulating baffle 84; The bottom of the chamber 80 communicates with the right air supply pipe 87 for secondary powder selection and the left air supply pipe 88 for secondary powder selection respectively as mentioned above.

As shown in accompanying drawing 5,12,13, described pre-mill classifier 13 comprises feed hopper 11, feed hopper dust discharge cover 12, pre-mill classifier assembly 53, pre-mill classifier screw feeder 54, mill Pre-classifier conical distributor 55, pre-mill classifier airflow delivery pipe 56, coarse powder ash collecting hopper 59, wind classification chamber 61, ball mill screw feeder 64 and pre-mill classifier delivery pipe 22; The feeding hopper dust discharge cover 12 is equipped with on the feeding hopper 11, and the inner upper part of the feeding hopper dust discharge cover 12 is provided with a dust suction air duct 52, and the other end of the dust suction air duct 52 is connected with the described coarse powder ash collection hopper 59. connected; the rear part of the feeding hopper dust cover 12 is the pre-mill classifier assembly 53, and the upper part of the pre-mill classifier assembly 53 is connected to the pre-mill classifier feed pipe 22 Connected, the inner lower part of the pre-mill classifier assembly 53 is the pre-mill classifier air flow delivery pipe 56, and the upper end of the pre-mill classifier air flow delivery pipe 56 is the pre-mill classifier conical distributor 55, and the mill The lower part of the pre-classifier air flow feeding pipe 56 is a wind power classification chamber 61; the lower part of the feeding hopper 11 is equipped with a pre-mill classifier screw feeder 54, and the right part of the pre-mill classifier screw feeder 54 is placed In the wind power classifying chamber 61 as mentioned above, a pre-grind classifier screw feeder enclosure 96 is provided above it; The air supply pipe 60 of the pre-grinding classifier is provided with an air distribution hole 62; the middle part of the coarse powder dust collecting bucket 59 is longitudinally provided with a coarse powder dust collecting bucket wind blocking partition 63; The left side wall of the right part coarse powder ash hopper 59 separated by the dividing plate 63 is equipped with a coarse powder discharge choke plate 57, and the right side wall top of the right part coarse powder ash hopper 59 is a pre-grinding hopper as mentioned above. The air supply pipe 10, the middle part of the right side wall of the right coarse powder ash collecting hopper 59 is the coarse powder return pipe 27 as mentioned above, and the end of the coarse powder return pipe 27 is equipped with a coarse powder return pipe choke plate 58, the right coarse powder ash collection hopper 59 is also provided with an air supply channel 95 in the ball mill, and communicates with the ball mill hollow shaft air delivery channel 66; the lower part of the coarse powder ash collection hopper 59 is the ball mill spiral Feeder 64, the right end of the ball mill screw feeder 64 is connected with the ball mill 2, and the joint is provided with a hollow shaft air duct 66 of the ball mill; Pipe 22, the other end of the pre-grinding classifier feeding pipe 22 is connected with the pre-milling classifier dust faller 51, the lower part of the pre-milling classifier dust faller 51 is the pre-grinding classifier dust faller ash collection hopper 46. The lower part of the dust collector hopper 46 of the pre-grinding classifier communicates with the screw conveyor 47; the upper left part of the screw conveyor 47 is equipped with a screw conveyor exhaust pipe 24, and the screw conveyor discharge pipe The other end of the air pipe 24 is connected with the return air pipe 23 of the pre-grinding classifier as mentioned above.

As shown in accompanying drawings 5, 7 and 8, a rubber sealing ring 65 is installed at the connection between the ball mill 2 and the pre-grinding classifier 13, and a ball mill screw conveyor drive frame 67 is fixedly installed at the left end of the ball mill 2 body. The ball mill screw feeder driving frame 67 is fixedly connected with the main shaft of the ball mill screw feeder 64 as mentioned above; Left-handed helical blade 68; described ball mill feeding pipe 69 communicates with the separation chamber 71 of the described grinding tail separator 5, and the inner and lower part of the separation chamber 71 is provided with a waste material slide plate 70, and the waste material slide The material plate 70 is three pieces and arranged in three equal parts; the inner lower part of the separation chamber 71 is connected with the grinding tail air supply pipe 19 as mentioned above; the bottom of the separation chamber 71 is equipped with a waste hopper 72, and the waste hopper 72 Be provided with waste discharge port movable wind baffle 73 on.

As shown in accompanying drawings 17 and 18, the total air volume adjustment door 40 and the fan adjustment door 41 of the pre-grinding classifier are of the same structure. Door air adjustment plate 93, air volume adjustment door air adjustment handle 94 is housed on the bearing pin outside the pipeline.

The function of the suction-type Greek-phase pneumatic conveying of the present invention is mainly reflected in the use of semi-closed circulation, closed circulation and negative pressure operation modes.

The usual production method is that the temperature of slaked lime powder needs to be lowered to below 50°C before feeding, but the present invention can directly feed 50-150°C slaked lime powder through the feeding hopper 11 and enter the pre-grinding classifier screw feeder 54 Transported to the air classification chamber 61, under the blowing of the air supply pipe 60 of the pre-grinding classifier, similar qualified products are entrained by the air flow through the air-flow delivery pipe 56 of the pre-milling classifier, and dispersed by the conical distributor 55 of the pre-milling classifier After entering the pre-grinding classifier assembly 53, separation occurs under the centrifugal sweeping action of the rotor impeller of the pre-grinding classifier assembly 53. Qualified products are sent to the pre-grinding classifier dust collector 51 through the feeding pipe 56 of the pre-milling classifier. bucket 46 and enters the screw feeder 47, through the screw feeder 47, the product according to the user's needs can be discharged into the external ash collection bucket 97 through the external discharge pipe 76, and this part of the material can also be discharged through the body. The material pipe 77 is discharged into the ash hopper 49 of the main powder separator as an auxiliary material. The different fineness of the product is realized by adjusting the rotating speed of the rotor impeller of the classifier assembly 53 before grinding. The airflow after the air-powder separation in the pre-grinding classifier dust faller 51 passes through the pre-grinding classifier dust faller air collecting cap 25, and returns to the pre-grinding classifier fan 7 through the pre-grinding classifier return air duct 23. Among them, under the action of the air regulating plate 29 of the fan of the pre-grinding classifier, a part is discharged into the bag filter chamber 1 through the decompression pipe 16 of the fan of the pre-milling classifier, and discharged into the atmosphere after being filtered by the bag; The air supply pipe 60 of the machine supplies air to the wind classification chamber 61, and the insufficient part is supplemented by the dust suction air duct 52 arranged in the upper part of the dust exhaust cover of the feeding hopper through the air distribution hole 62, thereby achieving the purpose of negative pressure operation.

The coarse powder separated by the air flow delivery pipe 56 and the coarse powder discharge pipe of the classifier before grinding falls into the coarse powder ash collecting hopper 59, and is input into the ball mill 2 through the ball mill screw conveyor 64 for grinding. The left-handed helical vane 68 that is located at the right end ball mill delivery pipe 69 of the ball mill 2 mainly plays the role of preventing the grinding body from discharging the ball mill 2 . The ground material enters the separation chamber 71 through the ball mill feeding pipe 69 at the right end of the ball mill 2 under the entrainment of the air flow. The grinding tail feeding pipe at 71 tops is delivered to the main powder separator 18, and the large particle waste material then falls and enters the waste hopper 72 through the waste material slide plate 70 and is discharged.

The ground material enters the main powder separator airflow feed pipe 44 through the grinding tail feed pipe 18, and then enters the main powder separator assembly 42 after being dispersed by the conical distributor 43. Separation occurs under the centrifugal sweeping action of the impeller. Qualified product enters the dust faller of the dust faller of the dust faller of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the dust fall of the main dust collector. After the separated coarse powder enters the secondary powder selection chamber 80 and is sorted again, the similar fine powder is sucked into the main powder separator assembly 42 for sorting again, and the coarse powder is discharged into the pre-grinding classifier along the coarse powder return pipe 27 Coarse powder collection ash hopper 59.

The airflow after the air-powder separation of the dust faller of the main powder separator passes through the air collecting cap 98 of the main powder separator and the air collection pipe 99 of the main powder separator, and sucks the fan 6 of the powder separator through the air delivery pipe 20 of the main powder separator, and is then The fan 6 of the powder separator is discharged into the cyclone dust collector through the air delivery pipe 15 of the circulation system, and after the second dust removal, it is discharged into the bag filter room 1 along the air delivery pipe 14 of the cyclone dust collector, and discharged into the atmosphere after being filtered by the bag.

The said environmental protection effect is mainly reflected in, firstly, the equipment adopts the negative pressure operation mode, and the dust does not overflow; secondly, the feeding hopper of the pre-grinding classifier is provided with a dust suction air duct 52, and the external ash collecting hopper 97, and the ash collecting machine of the main powder separator Bucket 49 and cyclone dust catcher dust collecting bucket 79 are all arranged in the dust discharge cover 8;

Said energy-saving effect is mainly reflected in the use of thermal grinding production methods. When the slaked lime powder at 50-150°C enters the ball mill 2, it is in constant contact with the inner wall of the ball mill and the grinding body to undergo heat exchange, forming a high-temperature area in the ball mill. At this time, the ground material continuously provides heat for the mill. Fully contacted by the air flow, it will be digested, expanded and softened again, and then converted into active lime powder, which improves the product quality; at the same time, under the action of the air flow, the temperature of the material is reduced.

Said multifunctional effect is mainly reflected in, the one, close closed-circuit circulation air delivery pipe windshield 38, circulation system air delivery pipe windshield 39, open dust-absorbing air duct air regulator 50, cyclone dust collector windshield 37 , can realize the open cycle of the air transmission system. Adjust dust-absorbing air duct wind-regulating plate 50, circulation system air delivery pipe wind deflector 38, circulation system air delivery duct wind deflector 39, close cyclone dust collector wind deflector 37, can realize the semi-closed circulation of air delivery system. The second is to close the pre-grind classifier 13, open the main powder separator, and produce high-fineness products by adjusting the rotating speed of the rotor impeller of the main powder separator assembly 42 and the total air volume adjustment door 40.

Claims (7)

1, Pollutionless energy-saving multi-functional lime pulverizer, it is characterized in that it comprises cloth bag dust chamber (1), ball mill (2), powder concentrator (3), main powder separator, cyclone dust collectors (4), mill tail separator (5), powder concentrator blower fan (6), the preceding grader blower fan (7) of mill, dust discharge cover (8) and the preceding grader (13) of mill;

The upper left quarter of described cloth bag dust chamber (1) is equipped with cyclone dust collectors wind conveying pipe (14), and the other end of cyclone dust collectors wind conveying pipe (14) is connected with described cyclone dust collectors (4) top; The middle part of described cyclone dust collectors wind conveying pipe (14) is connected with circulatory system wind conveying pipe (15), and the lower end of circulatory system wind conveying pipe (15) is connected with the outlet of described powder concentrator blower fan (6); The middle part of going up of described circulatory system wind conveying pipe (15) is connected with cyclone dust collectors (4) by tube connector (17), on the circulatory system wind conveying pipe (15) on this top, junction, circulatory system wind conveying pipe deep bead (39) is housed, cyclone dust collectors deep bead (37) is being housed near on the tube connector (17) of this junction; The following middle part of described circulatory system wind conveying pipe (15) is connected with closed cycle wind conveying pipe (21), near on the closed cycle wind conveying pipe (21) of this junction closed cycle wind conveying pipe deep bead (38) is being housed;

The preceding grader dust falling device duct set (26) of mill is equipped with on described powder concentrator (3) top, the preceding grader dust falling device collection blast cap (25) of mill is equipped with in the upper end of grader dust falling device duct set (26) before the mill, the preceding grader backwind tube (23) of mill is housed on the grader dust falling device collection blast cap (25) before the mill, and the other end of grader backwind tube (23) is connected with grader blower fan (7) before the described mill before the mill; Grader backwind tube (23) is provided with the preceding grader Fan Regulation door (41) of mill before the mill; The middle part of described powder concentrator (3) is a main powder separator;

The side lower part of described powder concentrator (3) is equipped with external drainage conduit (76), and the other end of external drainage conduit (76) is connected with external flue-dust retainer (97); Main powder separator flue-dust retainer (49) is equipped with in the bottom of described powder concentrator (3); Cyclone dust collectors flue-dust retainer (79) is equipped with in the bottom of described cyclone dust collectors (4); Primary product sack filling machine (9) all is equipped with in the bottom of described external flue-dust retainer (97), main powder separator flue-dust retainer (49) and cyclone dust collectors flue-dust retainer (79), and external flue-dust retainer (97), main powder separator flue-dust retainer (49) and cyclone dust collectors flue-dust retainer (79) all are arranged in the described dust discharge cover (8);

Threeway wind conveying pipe (28) is equipped with at the rear portion of described powder concentrator (3), and vertical pipe of threeway wind conveying pipe (28) is connected with dust suction airduct (48); The transverse pipe right-hand member of threeway wind conveying pipe (28) is equipped with mill tail air feed pipe (19), and the other end of mill tail air feed pipe (19) is connected with described mill tail separator (5); The transverse pipe left end of threeway wind conveying pipe (28) is equipped with the preceding air feed pipe (10) of mill, and the other end of air feed pipe (10) is connected with the middle part of the preceding grader (13) of described mill before the mill;

The sidepiece of described powder concentrator (3) is equipped with mill tail conveying pipeline (18), and the other end of mill tail conveying pipeline (18) is connected with described mill tail separator (5) upper end; The middle part of described mill tail separator (5) is connected with the left part of described ball mill (2), and the right part of ball mill (2) is connected with grader (13) before the described mill;

Also be equipped with on the grader blower fan (7) before the described mill and grind preceding grader air feed pipe (60), grader air feed pipe (60) is provided with the preceding grader blower fan air regulating board (29) of mill before the mill; The preceding grader blower fan relief pipe (16) of mill is equipped with in the upper back of described cloth bag dust chamber (1), and the other end of grader blower fan relief pipe (16) is connected with grader air feed pipe (60) before the described mill before the mill.

2, Pollutionless energy-saving multi-functional lime pulverizer according to claim 1, it is characterized in that, top in the described cloth bag dust chamber (1) is distribution of air flow space (30), and the sidepiece of distribution of air flow space (30) is equipped with foregoing grader blower fan relief pipe (16); Middle and upper part and middle and lower part in the cloth bag dust chamber (1) are equipped with porous air distribution plate (31) respectively, and one-to-many gas flow hole distribution plate (31) is equipped with a plurality of cloth bag tube connectors (32) up and down in opposite directions, between the cloth bag tube connector (32) in opposite directions cloth bag (33) is housed; Cloth bag dust chamber flue-dust retainer (34) is housed under the described bottom porous air distribution plate (31), and smart powder sack filling machine (35) is equipped with in the bottom of cloth bag dust chamber flue-dust retainer (34); Sweep-up pipe (36) is equipped with in following side in the described cloth bag dust chamber (1), and the other end of sweep-up pipe (36) is connected with the preceding grader (13) of the mill outside the cloth bag dust chamber (1).

3, Pollutionless energy-saving multi-functional lime pulverizer according to claim 1, it is characterized in that described main powder separator comprises main powder separator collection blast cap (98), main powder separator duct set (99), main powder separator assembly (42), circular cone tripper (43), circular cone tripper cross bearer (92), air-flow conveying pipeline (44), secondary separating chamber (80), screw input feeder (47), dust suction airduct (48) and main powder separator flue-dust retainer (49); The middle part of described main powder separator collection blast cap (98) is a described main powder separator duct set (99), main powder separator duct set (99) is connected with main powder separator wind conveying pipe (20), the other end is connected with the suction inlet of described powder concentrator blower fan (6), on the main powder separator wind conveying pipe (20) near the suction inlet of powder concentrator blower fan (6) total blast volume adjustment doors (40) is housed; The bottom of described main powder separator duct set (99) is a described main powder separator assembly (42), air-flow conveying pipeline (44) is equipped with in the bottom of main powder separator assembly (42), described circular cone tripper cross bearer (92) is equipped with in the upper end of air-flow conveying pipeline (44), and described circular cone tripper (43) is equipped with on the top of circular cone tripper cross bearer (92); The bottom of described air-flow conveying pipeline (44) is provided with dividing plate (45), and the air-flow conveying pipeline (44) on dividing plate (45) top communicates with foregoing mill tail conveying pipeline (18); The bottom of dividing plate (45) is that secondary selects powder main feed pipe (90); Described secondary selects the lower end of powder main feed pipe (90) to communicate with described dust suction airduct (48), secondary selects on the sidewall of powder main feed pipe (90) and has secondary separating chamber left and right sides air feed pipe air supply hole (89) relatively, and selects the outer secondary of powder main feed pipe (90) to select right air feed pipe (87) of powder and secondary to select the left air feed pipe of powder (88) to communicate with described secondary respectively; Described secondary selects right air feed pipe (87) of powder and secondary to select the top of powder left side air feed pipe (88) that described secondary separating chamber (80) is housed; The side lower part of described secondary separating chamber (80) is equipped with meal feed back pipe (27), and stretches out main powder separator meal feed back pipe (27) outer and on the preceding grader (13) of mill and be connected; One side of screw input feeder (47) is connected with foregoing external drainage conduit (76), and external drainage conduit (76) is stretched out outside the main powder separator and joined with foregoing external flue-dust retainer (97); The opposite side of screw input feeder (47) also is equipped with drainage conduit (77) in the body, and air-flow blocking-up sideboard (78) is equipped with in the end of drainage conduit (77) in the body; Described main powder separator flue-dust retainer (49) is equipped with in described main powder separator bottom, and the bottom of main powder separator flue-dust retainer (49) is positioned at foregoing dust discharge cover (8); Be coated with described dust suction airduct (48) on the top of main powder separator flue-dust retainer (49), the right-hand member of dust suction airduct (48) is connected with foregoing threeway wind conveying pipe (28), the left end of dust suction airduct (48) stretches in the foregoing dust discharge cover (8) by bend pipe, and the pipe bent position of dust suction airduct (48) is provided with dust suction airduct air regulating board (50).

4, Pollutionless energy-saving multi-functional lime pulverizer according to claim 3 is characterized in that, the top of described secondary separating chamber (80) is provided with peep pole (82), and peep pole (82) is provided with closing cap (81); The internal upper part of described secondary separating chamber (80) is provided with air baffle (91), and the interior middle part of secondary separating chamber (80) has secondary and selects powder air supply hole (85), and secondary selects powder air supply hole (85) to be provided with and transfers windshield plate (84); The bottom of secondary separating chamber (80) selects right air feed pipe (87) of powder and secondary to select powder left side air feed pipe (88) to communicate with foregoing secondary respectively.

5, Pollutionless energy-saving multi-functional lime pulverizer according to claim 1, it is characterized in that the preceding grader (13) of described mill comprises feeding hopper (11), feeding hopper dust discharge cover (12), grinds preceding grader assembly (53), grinds preceding grader screw feeder (54), grinds preceding grader circular cone tripper (55), grinds preceding grader air-flow conveying pipeline (56), meal flue-dust retainer (59), air classification chamber (61) and ball mill screw input feeder (64); Described feeding hopper dust discharge cover (12) is housed on the described feeding hopper (11), and the internal upper part of feeding hopper dust discharge cover (12) is provided with dust absorbing air passage (52), and the other end of dust absorbing air passage (52) is connected with described meal flue-dust retainer (59); The rear portion of described feeding hopper dust discharge cover (12) is a grader assembly (53) before the described mill, the top of grader assembly (53) is connected with grader conveying pipeline (22) before the foregoing mill before the mill, the interior bottom of grader assembly (53) is the preceding grader air-flow conveying pipeline (56) of mill before the mill, the upper end of grader air-flow conveying pipeline (56) is a grader circular cone tripper (55) before the described mill before the mill, and the bottom of grader air-flow conveying pipeline (56) is air classification chamber (61) before the mill; The preceding grader screw feeder (54) of mill is equipped with in the bottom of described feeding hopper (11), and the right part of grader screw feeder (54) places in the foregoing air classification chamber (61) before the mill, and its top is provided with the preceding grader screw feeder seal bootr (96) of mill; The preceding grader air feed pipe (60) of mill is housed on the described air classification chamber (61), has wind distributing hole (62) on the grader air feed pipe (60) before the mill in air classification chamber (61); The middle part of described meal flue-dust retainer (59) vertically is provided with meal flue-dust retainer choke dividing plate (63); On the left side wall of the right part meal flue-dust retainer (59) that separates by meal flue-dust retainer choke dividing plate (63) meal discharge choke plate (57) is housed, the right side wall top of right part meal flue-dust retainer (59) is air feed pipe (10) before the foregoing mill, the right side wall middle part of right part meal flue-dust retainer (59) is a foregoing meal feed back pipe (27), meal feed back pipe choke plate (58) is equipped with in the end of meal feed back pipe (27), also be provided with intake adit (95) in the ball mill mill in the right part meal flue-dust retainer (59), and communicate with the defeated air channel (66) of ball mill hollow shaft; The bottom of described meal flue-dust retainer (59) is a described ball mill screw input feeder (64), and the right-hand member of ball mill screw input feeder (64) is connected with described ball mill (2), and its junction is provided with the defeated air channel (66) of ball mill hollow shaft; The upper lateral part of grader is equipped with the preceding grader conveying pipeline (22) of mill before the mill, the other end of grader conveying pipeline (22) is connected with grader dust falling device (51) before the mill before the mill, the bottom of grader dust falling device (51) is the preceding grader dust falling device flue-dust retainer (46) of mill before the described mill, and the bottom of grader dust falling device flue-dust retainer (46) communicates with screw input feeder (47) before the mill; The upper left quarter of described screw input feeder (47) is equipped with screw input feeder blast pipe (24), and the other end of screw input feeder blast pipe (24) is connected with grader backwind tube (23) before the foregoing mill.

6, Pollutionless energy-saving multi-functional lime pulverizer according to claim 1, it is characterized in that, described ball mill (2) is equipped with rubber closed-loop (65) with the junction of the preceding grader (13) of mill, ball mill screw input feeder bogie (67) fixedly is equipped with at the left end place in the body of ball mill (2), and ball mill screw input feeder bogie (67) is fixedlyed connected with the main shaft of foregoing ball mill screw input feeder (64); Be equipped with in the ball mill conveying pipeline (69) of ball mill (2) right-hand member and the interior right hand helix leaf left-handed spiral leaf (68) in opposite directions of the left end hollow shaft of ball mill (2); Described ball mill conveying pipeline (69) communicates with the separation chamber (71) of described mill tail separator (5), and the interior bottom of described separation chamber (71) is provided with waste material sliding plate (70), and described waste material sliding plate (70) is three and is the setting of trisection shape; The interior bottom of separation chamber (71) is connected with foregoing mill tail air feed pipe (19); Waste material bucket (72) is equipped with in the bottom of described separation chamber (71), and waste material bucket (72) is provided with waste material outlet movable choke plate (73).

7, according to claim 3 or 1 described Pollutionless energy-saving multi-functional lime pulverizer, it is characterized in that, grader Fan Regulation door (41) is same structure before described total blast volume adjustment doors (40) and the mill, it is to be installed on the pipeline by bearing pin, on the bearing pin in the pipeline air quantity adjustment doors air regulating board (93) is housed, the air quantity adjustment doors is housed on the bearing pin outside the pipeline transfers wind handle (94).

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