CN203779337U - Vibrating through-type shot blasting machine - Google Patents

Vibrating through-type shot blasting machine Download PDF

Info

Publication number
CN203779337U
CN203779337U CN201420170388.5U CN201420170388U CN203779337U CN 203779337 U CN203779337 U CN 203779337U CN 201420170388 U CN201420170388 U CN 201420170388U CN 203779337 U CN203779337 U CN 203779337U
Authority
CN
China
Prior art keywords
shot blasting
bucket elevator
blasting machine
ball
ball material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420170388.5U
Other languages
Chinese (zh)
Inventor
胡迪东
周刚
熊晗
陈红兵
陈永坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU HIDEA MACHINERY CO LTD
Original Assignee
CHANGZHOU HIDEA MACHINERY CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGZHOU HIDEA MACHINERY CO LTD filed Critical CHANGZHOU HIDEA MACHINERY CO LTD
Priority to CN201420170388.5U priority Critical patent/CN203779337U/en
Application granted granted Critical
Publication of CN203779337U publication Critical patent/CN203779337U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Jigging Conveyors (AREA)

Abstract

The utility model discloses a vibrating through-type shot blasting machine comprising a casting vibration conveyor, a shot screening vibration conveyor, a second bucket elevator, a shot circulating cleaning device, a blanking drive device, a first bucket elevator, a screw conveyer and a shot blasting device, wherein the shot blasting device comprises a shot blasting shell and a plurality of shot blasting components; each shot blasting component comprises a motor, an impeller head, an articulated chute and a shot valve; the motor is movably connected with the impeller head to drive the impeller head to work; one end of the articulated chute is connected to the screw conveyer after being connected with the shot valve; the other end of the articulated chute is communicated with the impeller head; the casting vibration conveyer is arranged below the shot blasting device; a chute opening is formed in the bottom of the casting vibration conveyer; a feeding hole of the shot screening vibration conveyer is communicated with the chute opening; a discharge hole of the shot screening vibration conveyer is communicated with a bottom receiving opening of the second bucket elevator. The vibrating through-type shot blasting machine can automatically carry out shot blasting cleaning on foundry returns, the cleaning efficiency of the foundry returns is improved, and the cleaning efficiency is reduced.

Description

Vibration passing shot blasting machine
Technical field
The utility model relates to a kind of vibration passing shot blasting machine, belongs to shot-blast apparatus technical field.。
Background technology
At present, fast development along with China's casting industry, a lot of enterprises use more energy-conserving and environment-protective electric furnace to substitute original furnace cupola, this just makes the cleaning problem of foundry returns become particularly thorny, without the foundry returns of removing surface in the process of melting, a large amount of slags can be floated in the surface of electric furnace, is all by manually salvaging mostly, and length consuming time, intensity are large; Some enterprises can utilize existing shot-blast apparatus to carry out Shot Blasting to foundry returns, and owing to not being special equipment, productivity ratio is all very low, has wasted the energy, also can set up on foot standby fault rate.
Summary of the invention
Technical problem to be solved in the utility model is the defect that overcomes prior art, and a kind of vibration passing shot blasting machine is provided, and it can automation carry out impeller blasting to foundry returns, improves the cleaning efficiency of foundry returns, reduces cleaning efficiency.
The utility model solves the problems of the technologies described above the technical scheme of taking: a kind of vibration passing shot blasting machine, it comprises foundry goods jigging conveyer, ball material screen divides jigging conveyer, the second bucket elevator, ball material circulation cleaning plant, blanking drive unit, the first bucket elevator, conveying worm and peener, peener has ball blast housing and a plurality of ball blast parts, ball blast parts comprise motor, impeller head, elephant trunk and ball material valve, motor is flexibly connected with impeller head to drive its work, one end of elephant trunk is connected to conveying worm after connecting ball material valve again, the other end of elephant trunk is connected with impeller head, described foundry goods jigging conveyer be arranged on peener under, the bottom of foundry goods jigging conveyer is provided with chute mouth, described ball material screen divides the charging aperture of jigging conveyer to be connected with chute mouth, ball material screen divides the discharging opening of jigging conveyer and the bottom material receiving port of the second bucket elevator to be connected, the top discharge mouth of the second bucket elevator is connected with the charging aperture of ball material circulation cleaning plant, the discharging opening of ball material circulation cleaning plant is connected with the bottom material receiving port of the first bucket elevator by blanking drive unit, the top discharge mouth of the first bucket elevator is connected to the feed end of conveying worm.
Further, described ball material circulation cleaning plant comprises expansion tank and the conversion horn body, concentration equipment, pneumatic separation device and the storage bin hopper that are communicated with successively, the conversion charging aperture of horn body and the top discharge mouth of the second bucket elevator are connected, the discharging opening of storage bin hopper is connected with the bottom material receiving port of the first bucket elevator by blanking drive unit, and the suction opeing of expansion tank is connected with the air port of pneumatic separation device.
Further unaffected in the process recycling in order to ensure the quality of ball material, described concentration equipment comprises main concentration equipment, main magnetic separation screw feeder and the secondary concentration equipment connecting successively.
Further, described expansion tank comprises expansion tank main body and airduct valve, and the air outlet place of expansion tank main body is connected with airduct valve, and the suction opeing of expansion tank main body is connected with the air port of pneumatic separation device.
Further for the ball material to after ball blast carries out dust removal process, in described ball blast housing, be provided with exhausting chamber, ball blast parts also comprise exhaust column and exhaust column valve, and described exhausting chamber is connected with exhaust column by exhaust column valve, are also provided with access door on ball blast housing.
Further, described foundry goods jigging conveyer also has vibrated bed bed body, spring, supporting leg and vibrating motor, vibrating motor is arranged on vibrated bed bed body, vibrated bed bed body is arranged on supporting leg, and spring is arranged between vibrated bed bed body and supporting leg, and described chute mouth is arranged on the bottom of vibrated bed bed body.
Further in order to be beneficial to foundry returns, can roll in the process of walking, the stepped structure of diapire of the vibrated bed bed body of described foundry goods jigging conveyer.
Further, described ball material screen divides jigging conveyer to comprise a body, rubber spring, bed body supporting leg and bed body vibrating motor, and bed body vibrating motor is arranged on a body, and bed body is arranged on a body supporting leg, and rubber spring is arranged between a body and bed body supporting leg.
Further, in order effectively to prevent splashing of ball material, described peener also comprises left side rubber curtain, right side rubber curtain, left side baffle plate and right side baffle plate, and left side rubber curtain, right side rubber curtain, left side baffle plate and right side baffle plate are successively set on ball blast housing.
Adopted after technique scheme, foundry goods jigging conveyer arrival end band workpiece photoelectric detection system, differentiate and whether have workpiece supplied materials, when there is workpiece in ball blast region, open immediately ball material valve and carry out ball blast, workpiece is first in first out at foundry goods jigging conveyer, therefore setting ball material valve is many groups, realize the different ball blast time, can guarantee so the complete impelling of ball material on workpiece rather than on bed body, after ball blast completes, workpiece is discharged from the exit of foundry goods jigging conveyer, the ball material that is mixed with impurity producing in ball blast process flows into the chute mouth of bottom from the gap of foundry goods jigging conveyer, then flow into ball material screen and divide jigging conveyer, ball material divides jigging conveyer from discharging opening, to flow into the bottom feeding mouth of the second bucket elevator through ball material screen, through the second bucket elevator, ball material is promoted to top discharge mouth, then flow into conversion horn body, and then the main concentration equipment of approach, secondary concentration equipment, pneumatic separation device enters storage bin hopper, pneumatic separation device is connected with expansion tank, responsible handle enters the dust adulterating in pneumatic separation device ball material and extracts out, the ball material that assurance enters storage bin hopper cleans totally substantially, can enter shot-blasting machine uses, thereby realized foundry returns being carried out to the automation process of impeller blasting, improved the cleaning efficiency of foundry returns, reduce cleaning efficiency.
Accompanying drawing explanation
Fig. 1 is the front view of vibration passing shot blasting machine of the present utility model;
Fig. 2 is the right view of vibration passing shot blasting machine of the present utility model;
Fig. 3 is the structural representation of peener of the present utility model;
Fig. 4 is the structural representation of foundry goods jigging conveyer of the present utility model.
The specific embodiment
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below.
As shown in Fig. 1~4, a kind of vibration passing shot blasting machine, it comprises foundry goods jigging conveyer 2, ball material screen divides jigging conveyer 3, the second bucket elevator 4-2, ball material circulation cleaning plant, blanking drive unit 11, the first bucket elevator 4-1, conveying worm 12 and peener, peener has ball blast housing 1-5 and a plurality of ball blast parts, ball blast parts comprise motor 1-2, impeller head 1-1, elephant trunk 14 and ball material valve 13, motor 1-2 is flexibly connected with impeller head 1-1 to drive its work, one end of elephant trunk 14 is connected to conveying worm 12 after connecting ball material valve 13 again, the other end of elephant trunk 14 is connected with impeller head 1-1, foundry goods jigging conveyer 2 be arranged on peener apart from below, the bottom of foundry goods jigging conveyer 2 is provided with chute mouth 2-5, ball material screen divides the charging aperture of jigging conveyer 3 to be connected with chute mouth 2-5, ball material screen divides the discharging opening of jigging conveyer 3 to be connected with the bottom material receiving port of the second bucket elevator 4-2, the top discharge mouth of the second bucket elevator 4-2 is connected with the charging aperture of ball material circulation cleaning plant, the discharging opening of ball material circulation cleaning plant is connected with the bottom material receiving port of the first bucket elevator 4-1 by blanking drive unit 11, the top discharge mouth of the first bucket elevator 4-1 is connected to the feed end of conveying worm 12, it is one section of steel wire that ball material screen divides jigging conveyer 3 exit front ends, is responsible for separated ball material and large overlap impurity, and steel wire below is that a chute is as discharging opening, peener can be distributed with 4 impeller heads, and be symmetrically distributed in the two ends of peener, the utility model can adopt before and after two groups totally four ball material valves 13 by different solenoid control, can realize the different opening times, because workpiece is carried first in first out by vibrated bed, the different opening time of ball material valve 13 can be guaranteed the complete impelling of ball material on workpiece rather than on bed body, thereby reduces the consumptions of the energy and ball material the service life of extension device.
As shown in Figure 1, 2, ball material circulation cleaning plant comprises expansion tank 9 and the conversion horn body 5, concentration equipment, pneumatic separation device 8 and the storage bin hopper 10 that are communicated with successively, the charging aperture of conversion horn body 5 is connected with the top discharge mouth of the second bucket elevator 4-2, the discharging opening of storage bin hopper 10 is connected with the bottom material receiving port of the first bucket elevator 4-1 by blanking drive unit 11, and the suction opeing of expansion tank 9 is connected with the air port of pneumatic separation device 8.With the ball material of residue, dust, after the sand separation of concentration equipment ball, then extract dust out by pneumatic separation device 8, last clean ball material falls into storage bin hopper 10.
As shown in Figure 2, concentration equipment comprises main concentration equipment 6-1, main magnetic separation screw feeder 6-2 and the secondary concentration equipment 7 connecting successively.
As shown in Figure 2, expansion tank 9 comprises expansion tank main body 9-1 and airduct valve 9-2, and the air outlet place of expansion tank main body 9-1 is connected with airduct valve 9-2, and the suction opeing of expansion tank main body 9-1 is connected with the air port of pneumatic separation device 8.
As shown in Figure 1, in ball blast housing 1-5, be provided with exhausting chamber, ball blast parts also comprise exhaust column and exhaust column valve 1-3, and exhausting chamber is connected with exhaust column by exhaust column valve 1-3, on ball blast housing 1-5, be also provided with access door 1-4, be convenient to the maintenance of shot blast room inside; Multiple rubber curtain and baffle plate are all used in both sides, in order effectively to prevent splashing of ball material, in addition ball blast hot-zone is furnished with left side abrasion-proof backing block 1-10 and the right side abrasion-proof backing block 1-11 that can change, and middle part is air channel, and the impurity such as dust are discharged by the suction opeing being positioned on shot blast room top.
As shown in Figure 1, foundry goods jigging conveyer 2 also has vibrated bed bed body 2-1, spring 2-2, supporting leg 2-3 and vibrating motor 2-4, vibrating motor 2-4 is arranged on vibrated bed bed body 2-1, vibrated bed bed body 2-1 is arranged on supporting leg 2-2, and spring 2-2 is arranged between vibrated bed bed body 2-1 and supporting leg 2-2, and chute mouth 2-5 is arranged on the bottom of vibrated bed bed body 2-1.
As shown in Figure 4, the stepped structure of diapire of the vibrated bed bed body 2-1 of foundry goods jigging conveyer 2, this rolls in the process of walking and designs in order to be beneficial to foundry goods, is also furnished with left side abrasion-proof backing block 2-6 and the right side abrasion-proof backing block 2-7 that can change in ball blast hot-zone.
As shown in Figure 1, ball material screen divides jigging conveyer 3 to comprise a body 3-1, rubber spring 3-2, bed body supporting leg 3-3 and bed body vibrating motor 3-4, bed body vibrating motor 3-4 is arranged on a body 3-1, it is upper that bed body 3-1 is arranged on a body supporting leg 3-3, and rubber spring 3-2 is arranged between a body 3-1 and bed body supporting leg 3-3.
As shown in Figure 3, peener also comprises left side rubber curtain 1-6, right side rubber curtain 1-7, left side baffle plate 1-8 and right side baffle plate 1-9, and left side rubber curtain 1-6, right side rubber curtain 1-7, left side baffle plate 1-8 and right side baffle plate 1-9 are successively set on ball blast housing 1-5.
Operation principle of the present utility model is as follows:
Foundry goods jigging conveyer 2 arrival end band workpiece photoelectric detection systems, differentiate and whether have workpiece supplied materials, when there is workpiece in ball blast region, open immediately ball material valve and carry out ball blast, workpiece is first in first out at foundry goods jigging conveyer 2, therefore set ball material valve 13 for many groups, realize the different ball blast time, can guarantee so the complete impelling of ball material on workpiece rather than on bed body, after ball blast completes, workpiece is discharged from the exit of foundry goods jigging conveyer 2, the ball material that is mixed with impurity producing in ball blast process flows into the chute mouth 2-5 of bottom from the gap of foundry goods jigging conveyer 2, then flow into ball material screen and divide jigging conveyer 3, ball material divides jigging conveyer 3 from discharging opening, to flow into the bottom feeding mouth of the second bucket elevator 4-2 through ball material screen, through the second bucket elevator 4-2, ball material is promoted to top discharge mouth, then flow into conversion horn body 5, and then the main concentration equipment 6 of approach, secondary concentration equipment 7, pneumatic separation device 8 enters storage bin hopper 10, pneumatic separation device 8 is connected with expansion tank 9, responsible handle enters the dust adulterating in pneumatic separation device 8 ball material and extracts out, the ball material that assurance enters storage bin hopper 10 cleans totally substantially, can enter shot-blasting machine uses, thereby realized foundry returns being carried out to the automation process of impeller blasting, improved the cleaning efficiency of foundry returns, reduce cleaning efficiency.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model is solved further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (9)

1. one kind is vibrated passing shot blasting machine, it is characterized in that: it comprises foundry goods jigging conveyer (2), ball material screen divides jigging conveyer (3), the second bucket elevator (4-2), ball material circulation cleaning plant, blanking drive unit (11), the first bucket elevator (4-1), conveying worm (12) and peener, peener has ball blast housing (1-5) and a plurality of ball blast parts, ball blast parts comprise motor (1-2), impeller head (1-1), elephant trunk (14) and ball material valve (13), motor (1-2) is flexibly connected to drive its work with impeller head (1-1), one end of elephant trunk (14) is connected to conveying worm (12) after connecting ball material valve (13) again, the other end of elephant trunk (14) is connected with impeller head (1-1), described foundry goods jigging conveyer (2) be arranged on peener under, the bottom of foundry goods jigging conveyer (2) is provided with chute mouth (2-5), described ball material screen divides the charging aperture of jigging conveyer (3) to be connected with chute mouth (2-5), ball material screen divides the discharging opening of jigging conveyer (3) to be connected with the bottom material receiving port of the second bucket elevator (4-2), the top discharge mouth of the second bucket elevator (4-2) is connected with the charging aperture of ball material circulation cleaning plant, the discharging opening of ball material circulation cleaning plant is connected with the bottom material receiving port of the first bucket elevator (4-2) by blanking drive unit (11), the top discharge mouth of the first bucket elevator (4-2) is connected to the feed end of conveying worm (12).
2. vibration passing shot blasting machine according to claim 1, it is characterized in that: described ball material circulation cleaning plant comprises expansion tank (9) and the conversion horn body (5), concentration equipment, pneumatic separation device (8) and the storage bin hopper (10) that are communicated with successively, the charging aperture of conversion horn body (5) is connected with the top discharge mouth of the second bucket elevator (4-2), the discharging opening of storage bin hopper (10) is connected with the bottom material receiving port of the first bucket elevator (4-1) by blanking drive unit (11), and the suction opeing of expansion tank (9) is connected with the air port of pneumatic separation device (8).
3. vibration passing shot blasting machine according to claim 2, is characterized in that: described concentration equipment comprises main concentration equipment (6-1), main magnetic separation screw feeder (6-2) and the secondary concentration equipment (7) connecting successively.
4. vibration passing shot blasting machine according to claim 2, it is characterized in that: described expansion tank (9) comprises expansion tank main body (9-1) and airduct valve (9-2), the air outlet place of expansion tank main body (9-1) is connected with airduct valve (9-2), and the suction opeing of expansion tank main body (9-1) is connected with the air port of pneumatic separation device (8).
5. vibration passing shot blasting machine according to claim 1, it is characterized in that: in described ball blast housing (1-5), be provided with exhausting chamber, ball blast parts also comprise exhaust column and exhaust column valve (1-3), described exhausting chamber is connected with exhaust column by exhaust column valve (1-3), on described ball blast housing (1-5), is also provided with access door (1-4).
6. vibration passing shot blasting machine according to claim 1, it is characterized in that: described foundry goods jigging conveyer (2) also has vibrated bed bed body (2-1), spring (2-2), supporting leg (2-3) and vibrating motor (2-4), vibrating motor (2-4) is arranged on vibrated bed bed body (2-1), vibrated bed bed body (2-1) is arranged on supporting leg (2-2), and spring (2-2) is arranged between vibrated bed bed body (2-1) and supporting leg (2-2), and described chute mouth (2-5) is arranged on the bottom of vibrated bed bed body (2-1).
7. vibration passing shot blasting machine according to claim 6, is characterized in that: the stepped structure of diapire of the vibrated bed bed body (2-1) of described foundry goods jigging conveyer (2).
8. vibration passing shot blasting machine according to claim 1, it is characterized in that: described ball material screen divides jigging conveyer (3) to comprise a body (3-1), rubber spring (3-2), bed body supporting leg (3-3) and bed body vibrating motor (3-4), bed body vibrating motor (3-4) is arranged on a body (3-1), it is upper that bed body (3-1) is arranged on a body supporting leg (3-3), and rubber spring (3-2) is arranged between a body (3-1) and bed body supporting leg (3-3).
9. vibration passing shot blasting machine according to claim 1, it is characterized in that: described peener also comprises left side rubber curtain (1-6), right side rubber curtain (1-7), left side baffle plate (1-8) and right side baffle plate (1-9), left side rubber curtain (1-6), right side rubber curtain (1-7), left side baffle plate (1-8) and right side baffle plate (1-9) are successively set on ball blast housing (1-5).
CN201420170388.5U 2014-04-10 2014-04-10 Vibrating through-type shot blasting machine Expired - Lifetime CN203779337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420170388.5U CN203779337U (en) 2014-04-10 2014-04-10 Vibrating through-type shot blasting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420170388.5U CN203779337U (en) 2014-04-10 2014-04-10 Vibrating through-type shot blasting machine

Publications (1)

Publication Number Publication Date
CN203779337U true CN203779337U (en) 2014-08-20

Family

ID=51315565

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420170388.5U Expired - Lifetime CN203779337U (en) 2014-04-10 2014-04-10 Vibrating through-type shot blasting machine

Country Status (1)

Country Link
CN (1) CN203779337U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104263879A (en) * 2014-10-07 2015-01-07 乜忠利 Swing type furnace charge shot-blasting clearing bed of continuous pass type electric furnace
CN104816254A (en) * 2015-05-13 2015-08-05 保定维尚铸造机械成套设备制造有限公司 Pellet-adding vibration cleaning machine
CN104924221A (en) * 2015-06-24 2015-09-23 常州好迪机械有限公司 Shot blasting equipment
CN106976021A (en) * 2017-03-31 2017-07-25 青岛吉尔工程橡胶有限公司 A kind of energy-saving rubber fender sand-blasting machine
CN108705453A (en) * 2018-06-14 2018-10-26 常州好迪机械有限公司 Online peener

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104263879A (en) * 2014-10-07 2015-01-07 乜忠利 Swing type furnace charge shot-blasting clearing bed of continuous pass type electric furnace
CN104816254A (en) * 2015-05-13 2015-08-05 保定维尚铸造机械成套设备制造有限公司 Pellet-adding vibration cleaning machine
CN104816254B (en) * 2015-05-13 2017-03-01 保定维尚铸造机械成套设备制造有限公司 Plus ball vibrating cleaning machine
CN104924221A (en) * 2015-06-24 2015-09-23 常州好迪机械有限公司 Shot blasting equipment
CN106976021A (en) * 2017-03-31 2017-07-25 青岛吉尔工程橡胶有限公司 A kind of energy-saving rubber fender sand-blasting machine
CN106976021B (en) * 2017-03-31 2021-10-26 南京吉尔海事工程有限公司 Energy-saving rubber fender sand blasting machine
CN108705453A (en) * 2018-06-14 2018-10-26 常州好迪机械有限公司 Online peener

Similar Documents

Publication Publication Date Title
CN203779337U (en) Vibrating through-type shot blasting machine
CN102528673B (en) Rotating table type sandblasting machine
WO2013060095A1 (en) Process and system for dry coal preparation by coal gangue removal
CN205097057U (en) Sand blasting machine equipment
CN206701449U (en) A kind of efficient grinding system of aluminum cell electrolyte crust block
CN105689128A (en) Double-drum magnetic separator
CN105289985A (en) Coal full-size dry separation cleaning process and system
CN202640160U (en) Rotating table type sandblast equipment
CN205462720U (en) Remove magnetic device
CN207238243U (en) A kind of discharge system suitable for cleaning magnetic separator
CN103752404B (en) A kind of dry-and wet-type circulation electromagnetic separator
CN203525844U (en) Grinding equipment
CN205343593U (en) Foam granule conveyor
CN204365692U (en) A kind of coarse cereal color selector dust arrester
CN209887401U (en) Shot blasting rust removal processing device
CN109530810B (en) A kind of fully-automatic chamfering machine
CN204018225U (en) A kind of steel pipe iron filings and part automatic separation system
CN215465023U (en) Dolomite sand processing lines
CN203509959U (en) Full-curtain shot-sand separation system
CN203562248U (en) An obsolescent wire and cable recovery apparatus
CN205097056U (en) Sandblast two -stage separation device
CN211415879U (en) Impurity removing equipment for automatic feeding device for plastic production
CN103802034A (en) Shot-sand separator
CN207308877U (en) A kind of foundry scrap separating and reclaiming device
CN209835028U (en) Air conveying chute for fly ash production

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20140820

CX01 Expiry of patent term