CN110000910B - Thistle board drying equipment air distribution flashboard adjusting device - Google Patents
Thistle board drying equipment air distribution flashboard adjusting device Download PDFInfo
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- CN110000910B CN110000910B CN201910262357.XA CN201910262357A CN110000910B CN 110000910 B CN110000910 B CN 110000910B CN 201910262357 A CN201910262357 A CN 201910262357A CN 110000910 B CN110000910 B CN 110000910B
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- gate plate
- air distribution
- air
- dryer
- drying equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
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Abstract
The embodiment of the invention discloses an air distribution gate plate adjusting device of paper-surface gypsum board drying equipment, which comprises a dryer, wherein a plurality of layers of air chambers are arranged in the dryer in parallel from top to bottom, the air chambers are divided into a plurality of air channels through partition plates, a group of air distribution gate plate assemblies are arranged in each layer of air chamber, adjusting rod assemblies which correspond to the air distribution gate plate assemblies one by one are fixedly arranged outside the dryer, the air distribution gate plate assemblies are connected with the adjusting rod assemblies through adjusting mechanisms, each air distribution gate plate assembly comprises a fixed rod, the fixed rod is formed by sequentially sleeving a plurality of connecting pipes with the same number of air channels, and the periphery of each connecting pipe is connected with a gate plate; according to the embodiment of the invention, the rotation angle of the corresponding air distribution flashboard assembly inside the dryer is controlled by the movement of the adjusting rod assembly, so that the problem that the opening of the internal flashboard can be adjusted only by opening the door of the dryer after the dryer is stopped in the prior art is solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of thistle board production equipment, in particular to an air distribution flashboard adjusting device of thistle board drying equipment.
Background
The paper-surface gypsum board is a light building board made up by using gypsum (including natural gypsum and chemical gypsum) and face-protecting paper as main raw materials, adding proper quantity of fibre, adhesive, coagulation regulator, foaming agent and water according to a certain proportion and adopting the processes of calcining mature gypsum, mixing, forming, solidifying, cutting, drying and cutting edge. The paper-surface gypsum board has the characteristics of light weight, sound insulation, heat insulation, strong processability and simple and convenient construction method, thereby being widely applied to the rapidly developed real estate industry and the related decorative material industry.
The paper-surface gypsum board is formed by spreading the slurry between upper and lower protective paper sheets, forming the paper-surface gypsum board into a fixed width and thickness by a forming device, wherein the theoretical water consumption required for hydration of the calcined gypsum is 18.6% of the weight of the calcined gypsum, and the water-paste ratio is often more than 70% in order to make the gypsum slurry have good fluidity during the forming of the gypsum board. This excess free moisture needs to be evaporated from the core of the board during the drying process. In the process of water evaporation, the adhesive (modified starch) migrates to the interface between the surface layers of the protective paper and the gypsum core along with the evaporation of water, and the protective paper and the gypsum core are firmly bonded together after gelatinization. Therefore, the drying equipment is an important equipment of the gypsum board production line, and the process needs to accurately control the temperature of each layer entering the drying equipment so as to ensure the drying quality. Traditional drying equipment can only be by opening the aperture and the air distribution volume of drying equipment gate adjustment inside flashboard after shutting down, can't realize the adjustment outside the desiccator, and the operation is complicated and influences the production quality of thistle board.
Disclosure of Invention
Therefore, the embodiment of the invention provides an air distribution gate plate adjusting device for a thistle board drying device, which controls the rotating angle of an air distribution gate plate assembly corresponding to the inside of a dryer through the movement of a sliding block in an adjusting rod assembly, so as to solve the problem that the opening of the internal gate plate can be adjusted only by opening a gate of the dryer after shutdown in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the utility model provides a thistle board drying equipment air distribution flashboard adjusting device, includes the desiccator, the inside of desiccator is parallel from top to bottom be provided with a plurality of layers of plenum, the plenum passes through the baffle and is cut apart into a plurality of wind channels, every layer the plenum in all install a set of air distribution flashboard subassembly, the outside fixed mounting of desiccator has the regulation pole subassembly with air distribution flashboard subassembly one-to-one, air distribution flashboard subassembly and regulation pole subassembly pass through guiding mechanism and connect.
The air distribution flashboard assembly comprises a fixed rod, the fixed rod is formed by sequentially sleeving a plurality of connecting pipes with the same quantity as air ducts, and each connecting pipe is connected with a flashboard at the periphery.
The embodiment of the invention is further characterized in that the adjusting mechanism comprises a plurality of sleeves with different thicknesses, the sleeves are sequentially sleeved, each sleeve is connected with a rotating plate with different heights, one end of the adjusting mechanism is connected with the connecting pipe of the air distribution flashboard assembly through the sleeve, and the other end of the adjusting mechanism is connected with the adjusting rod assembly through the rotating plate.
The embodiment of the invention is further characterized in that the end part of the sleeve is symmetrically connected with two outward-expanded clamping blocks, the tail end of the connecting pipe is provided with a clamping groove corresponding to the clamping blocks, and the sleeve is connected with the connecting pipe by embedding the clamping blocks into the clamping groove.
The embodiment of the invention is also characterized in that the adjusting rod assembly is fixedly connected with the outer wall of the dryer through a support frame, the adjusting rod assembly comprises a plurality of parallel screw rods, the screw rods are respectively provided with a sliding block, the sliding blocks are connected with the rotating plate, and the rotating screw rods are rotated to drive the sliding blocks to move so as to control the rotating angle of the corresponding air distribution flashboard assembly in the dryer.
The embodiment of the invention is also characterized in that the end part of the rotating plate is connected with a fastening screw, the sliding block is provided with a through hole, and the rotating plate is connected with the sliding block through the fastening screw.
The embodiment of the invention is further characterized in that the support frame is fixed on the outer wall of the dryer through bolts, one end of the screw rod is connected with the side wall of the support frame through a bearing, the other end of the screw rod penetrates through the other side wall of the support frame and is connected with a driving device, the position, corresponding to each screw rod, of the outer wall of the dryer is provided with a flashboard opening and closing angle scale strip, and the scale of the flashboard opening and closing angle scale strip is obtained through conversion according to the moving distance of the sliding block.
The embodiment of the invention is also characterized in that the inner layer of the gate plate is a high-temperature-resistant metal plate, the outer surface of the high-temperature-resistant metal plate is coated with a corrosion-resistant layer, the downwind surface of the gate plate is provided with a strip-shaped air inducing groove, and the upwind surface of the gate plate is provided with an arc-shaped anti-blocking groove.
The embodiment of the invention is also characterized in that a step-shaped groove is arranged at the air outlet of the air chamber, the fixed rod is arranged in the groove, the height and the width of the gate plate are both consistent with the height and the width of the air channel, and the gate plate rotates to the horizontal position and is attached to the bottom surface of the air chamber.
The embodiment of the invention has the following advantages:
the adjusting rod assembly is arranged outside the dryer, the rotation of the adjusting mechanism is controlled through the movement of the adjusting rod assembly, so that the rotation angle of an air distribution gate plate assembly corresponding to the inside of the dryer connected with the adjusting mechanism is changed, the opening degree of an internal air chamber gate plate is adjusted outside the dryer to control the air distribution quantity, the temperature balance of each layer of the dryer is ensured, the drying quality of the gypsum plaster board is ensured, and the problem that the opening degree of the internal gate plate can be adjusted only by opening a door of the dryer after the dryer is stopped in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a side view of the dryer with the adjustment lever assembly of the embodiment of the present invention removed;
FIG. 3 is a schematic front view of an adjusting mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of a reverse structure of an adjustment mechanism according to an embodiment of the invention;
FIG. 5 is an elevation view of a adjust rod assembly according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of an air distribution shutter assembly according to an embodiment of the present invention;
fig. 7 is a schematic perspective view of a shutter according to an embodiment of the present invention.
In the figure:
1-a dryer; 2-an air chamber; 3, an air distribution flashboard component; 4-a lever assembly; 5-an adjusting mechanism; 6-a support frame;
201-a separator; 202-an air duct; 203-grooves;
301-connecting tube; 302-a gate;
401-a screw mandrel; 402-a slider; 403-a scale bar for the opening and closing angle of the flashboard;
501-casing pipe; 502-rotating the plate; 503-fastening screws;
3011-a card slot; 3021-draft trough; 3022-anti-block groove;
5011-a fixture block;
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, a thistle board drying equipment air distribution flashboard adjusting device, including desiccator 1, the inside of desiccator 1 from top to bottom parallel be provided with a plurality of layers of plenum 2, plenum 2 is cut apart into a plurality of wind channels 202 through baffle 201, every layer plenum 2 in all install a set of air distribution flashboard subassembly 3, the outside fixed mounting of desiccator 1 has the regulation pole subassembly 4 with air distribution flashboard subassembly 3 one-to-one, air distribution flashboard subassembly 3 and regulation pole subassembly 4 pass through guiding mechanism 5 and connect.
The adjusting rod assembly 4 of the embodiment of the invention is arranged outside the dryer 1, the rotation of the adjusting mechanism 5 is controlled by the movement of the adjusting rod assembly 4, so that the rotation angle of the air distribution gate plate assembly 3 corresponding to the inside of the dryer 1 connected with the adjusting mechanism is changed, the opening degree of the internal air chamber 2 gate plate outside the dryer 1 is adjusted to control the air distribution quantity, and the temperature balance of each layer of the dryer 1 is ensured.
Specifically, as shown in fig. 6, the air distribution damper assembly 3 includes a fixing rod, the fixing rod is formed by sequentially sleeving a plurality of connecting pipes 301 with the same number as the air duct 202, and the periphery of each connecting pipe 301 is connected with a damper 302.
When the air distribution shutter assembly 3 is installed, the diameters of the plurality of connecting pipes 301 are different in size, the connecting pipes 301 can be sequentially sleeved according to increasing of the diameters, meanwhile, the lengths of the connecting pipes 301 increase along with decreasing of the diameters of the connecting pipes 301, the outer surfaces of the fixing rods are in a step shape with uneven levels, the shutters 302 are connected to the exposed outer surfaces of the connecting pipes 301, and the shutters 302 and the air ducts 202 are in one-to-one correspondence to control the opening and closing angles of the air ducts 202.
The air distribution gate plate assembly 3 and the air chamber 2 can be arranged at the air outlet of the air chamber 2, a step-shaped groove 203 is formed, a fixing rod is arranged in the groove 203, the gate plate 302 extends into the air channel 202 corresponding to the gate plate 302, the height and the width of the gate plate 302 are consistent with those of the air channel 202, when the gate plate 302 rotates to the horizontal position to be attached to the bottom surface of the air chamber 2, the opening degree of the gate plate 302 is maximum at the moment, the air distribution amount is maximized, and when the gate plate 302 rotates to the vertical position, the air channel 202 is closed.
As shown in fig. 3 and 4, the adjusting mechanism 5 includes a plurality of sleeves 501 with different thicknesses, the plurality of sleeves 501 are sequentially sleeved, each sleeve 501 is connected with a rotating plate 502 with different heights, one end of the adjusting mechanism 5 is connected with the connecting pipe 301 of the air distribution shutter assembly 3 through the sleeve 501, and the other end of the adjusting mechanism 5 is connected with the adjusting rod assembly 4 through the rotating plate 502.
In the installation process of the adjusting mechanism 5, the sleeving method of the sleeves 501 is the same as that of the connecting pipes 301, the height of the rotating plate 502 connected with the outermost sleeve 501 is the highest, and the heights of the other rotating plates are gradually decreased, so that the adjusting mechanism 5 is connected with the air distribution shutter assembly 3, two outward-expanded clamping blocks 5011 can be symmetrically connected to the end portion of the sleeve 501, clamping grooves 3011 corresponding to the clamping blocks 5011 are formed in the tail end of the connecting pipe 301, the sleeve 501 is embedded into the clamping grooves 3011 through the clamping blocks 5011 to be connected with the connecting pipes 301, in the specific connection process, the number of the connecting pipes 301 is the same as that of the sleeves 501, and the connecting pipes can be installed sequentially from inside to outside, so that each connecting pipe 301 is connected with one corresponding sleeve 501, and the rotation of the sleeve 501 drives the connecting pipes 301 to rotate, thereby driving the shutters. The connection between the sleeve 501 and the connection pipe 301 may also be screwed or flanged or otherwise detachably connected, which facilitates maintenance or replacement of the adjusting mechanism 5 or the air distribution valve assembly 3.
As shown in fig. 5, the adjusting rod assembly 4 is fixedly connected with the outer wall of the dryer 1 through a support frame 6, the adjusting rod assembly 4 includes a plurality of parallel screws 401, the screws 401 are all provided with sliders 402, the sliders 402 are connected with a rotating plate 502, and the rotating screws 401 drive the sliders 402 to move to control the rotating angle of the corresponding air distribution shutter assembly 3 inside the dryer 1.
Adjust pole subassembly 4 and pass through support frame 6 to be fixed at the outer wall of desiccator 1, support frame 6 can be fixed on the outer wall of desiccator 1 through multiple modes such as bolt fastening, welding, adjusts the main installation process that pole subassembly 4 installed on support frame 6 and does: one end of the screw 401 is connected with the side wall of the support frame 6 through a bearing, the other end of the screw passes through the other side wall of the support frame 6 and is connected with a driving device, the screw 401 can adopt a ball screw, a sliding block 402 is arranged on a screw nut seat of the ball screw, and the screw 401 is externally connected with a stepping motor to convert the rotation of the screw 401 into the linear motion of the sliding block 402.
In the embodiment of the present invention, each sliding block 402 in the adjusting rod assembly 4 is connected to the rotating plate 502 in the adjusting mechanism 5 in a one-to-one correspondence manner, and the linear movement of one sliding block 402 can be converted into the rotational movement of the rotating plate 502 connected thereto, and the sleeve 501 connected to the rotating plate 502 is also connected to the connecting pipe 301 of the air distribution shutter assembly 3 in a one-to-one correspondence manner, so that the rotation of the rotating plate 502 drives the sleeve 501 to rotate, thereby realizing the rotation of the connecting pipe 301, and finally realizing the rotation of the shutter 302 connected to the connecting pipe 301. The whole process realizes the opening adjustment and control of the air distribution quantity of the flashboards 302 of each air channel 202 inside the drier 1 from the outside, thereby ensuring the drying quality of the gypsum plaster boards and solving the problem that the opening of the flashboards inside the drier can only be adjusted by opening the door of the drier after the drier is stopped in the prior art.
The connection between the rotating plate 502 and the sliding block 402 according to the embodiment of the present invention may be achieved in various manners, for example, the end of the rotating plate 502 is connected with a fastening screw 503, the sliding block 402 is provided with a through hole, and the rotating plate 502 is connected with the sliding block 402 via the fastening screw 503, and may also be connected in various manners such as welding and hinge.
In order to facilitate more accurate control of the opening and closing angle of each gate plate 302, a gate plate opening and closing angle scale strip 403 is arranged at the position, corresponding to each lead screw 401, of the outer wall of the drying machine 1, scales of the gate plate opening and closing angle scale strips 403 are converted according to the moving distance of the sliding block 402, the sliding block 402 is moved to an appointed opening and closing angle position by comparing the gate plate opening and closing angle scale strips 403, the adjustment of the rotating angle of the gate plate 302 can be completed, and the operation is more clear and visual.
As shown in fig. 7, hot air of the dryer 1 may generate a certain abrasion effect on the shutter 302, in order to reduce abrasion of the shutter 302, an inner layer of the shutter 302 may be a high temperature resistant metal plate, an outer surface of the high temperature resistant metal plate is coated with a corrosion resistant layer, a strip-shaped air guide groove 3021 is formed on a downwind surface of the shutter 302 to guide the hot air to flow out, an arc-shaped anti-blocking groove 3022 is formed on an upwind surface of the shutter 302, and the hot air blocked by the upwind surface from moving forward moves along an arc to play a role in buffering, so as to further reduce impact of the hot air on the shutter 302.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. An air distribution gate plate adjusting device of thistle board drying equipment comprises a dryer (1) and is characterized in that a plurality of layers of air chambers (2) are arranged in the dryer (1) in parallel from top to bottom, the air chambers (2) are divided into a plurality of air channels (202) through partition plates (201), a group of air distribution gate plate assemblies (3) are installed in each layer of air chambers (2), adjusting rod assemblies (4) which correspond to the air distribution gate plate assemblies (3) one by one are fixedly installed on the outer portion of the dryer (1), and the air distribution gate plate assemblies (3) are connected with the adjusting rod assemblies (4) through adjusting mechanisms (5);
the air distribution flashboard assembly (3) comprises a fixed rod, the fixed rod is formed by sequentially sleeving a plurality of connecting pipes (301) with the same number as the air channels (202), and the periphery of each connecting pipe (301) is connected with a flashboard (302);
adjustment mechanism (5) include sleeve pipe (501) that a plurality of thickness differs, a plurality of sleeve pipe (501) suit in proper order and every sleeve pipe (501) all are connected with the commentaries on classics board (502) that highly differs, the one end of adjustment mechanism (5) is passed through connecting pipe (301) of sleeve pipe (501) and air distribution flashboard subassembly (3) and is connected and the other end is passed through commentaries on classics board (502) and is adjusted pole subassembly (4) and connect.
2. The air distribution gate adjusting device of the gypsum plaster board drying equipment as claimed in claim 1, wherein two outward-expanding clamping blocks (5011) are symmetrically connected to the end of the sleeve (501), a clamping slot (3011) corresponding to the clamping block (5011) is formed at the end of the connecting pipe (301), and the sleeve (501) is inserted into the clamping slot (3011) through the clamping block (5011) and connected with the connecting pipe (301).
3. The air distribution gate plate adjusting device of the paper-surface gypsum board drying equipment is characterized in that the adjusting rod assembly (4) is fixedly connected with the outer wall of the dryer (1) through a support frame (6), the adjusting rod assembly (4) comprises a plurality of parallel lead screws (401), sliding blocks (402) are mounted on the lead screws (401), the sliding blocks (402) are connected with a rotating plate (502), and the rotating lead screws (401) are rotated to drive the sliding blocks (402) to move so as to control the rotating angle of the corresponding air distribution gate plate assembly (3) in the dryer (1).
4. The air distribution damper adjusting device of the thistle board drying equipment of claim 3, wherein a fastening screw (503) is connected to the end of the rotating plate (502), a through hole is formed in the sliding block (402), and the rotating plate (502) is connected with the sliding block (402) through the fastening screw (503).
5. The air distribution gate plate adjusting device of the thistle board drying equipment of claim 3, characterized in that, the support frame (6) is fixed on the outer wall of the dryer (1) through bolts, one end of the lead screw (401) is connected with the side wall of the support frame (6) through a bearing, the other end of the lead screw passes through the other side wall of the support frame (6) and is connected with a driving device, a gate plate opening and closing angle scale bar (403) is arranged at the position of the outer wall of the dryer (1) corresponding to each lead screw (401), and the scale of the gate plate opening and closing angle scale bar (403) is obtained through conversion according to the moving distance of the slide block (402).
6. The air distribution gate plate adjusting device of the thistle board drying equipment as claimed in claim 1, wherein the inner layer of the gate plate (302) is a high-temperature-resistant metal plate, the outer surface of the high-temperature-resistant metal plate is coated with a corrosion-resistant layer, the downwind surface of the gate plate (302) is provided with a strip-shaped air guide groove (3021), and the upwind surface of the gate plate (302) is provided with a circular arc-shaped anti-blocking groove (3022).
7. The air distribution gate plate adjusting device of the paper-surface gypsum board drying equipment is characterized in that a step-shaped groove (203) is arranged at the air outlet of the air chamber (2), the fixing rod is arranged in the groove (203), the height and the width of the gate plate (302) are consistent with the height and the width of the air channel (202), and the gate plate (302) rotates to the horizontal position to be attached to the bottom surface of the air chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262357.XA CN110000910B (en) | 2019-04-02 | 2019-04-02 | Thistle board drying equipment air distribution flashboard adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910262357.XA CN110000910B (en) | 2019-04-02 | 2019-04-02 | Thistle board drying equipment air distribution flashboard adjusting device |
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| CN110000910A CN110000910A (en) | 2019-07-12 |
| CN110000910B true CN110000910B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910262357.XA Active CN110000910B (en) | 2019-04-02 | 2019-04-02 | Thistle board drying equipment air distribution flashboard adjusting device |
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| CN111692867B (en) * | 2020-05-06 | 2021-12-17 | 北新集团建材股份有限公司 | Board edge drying device and board edge drying method for drying board edges of gypsum boards |
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| CN201508105U (en) * | 2009-08-25 | 2010-06-16 | 北新集团建材股份有限公司 | Air shutter of drier |
| CN201688676U (en) * | 2010-05-13 | 2010-12-29 | 泰山石膏股份有限公司 | Gypsum board dryer wind distribution device |
| CN204787732U (en) * | 2015-06-09 | 2015-11-18 | 天津市永昌焊丝有限公司 | A air regulation device for welding rod is dried |
| CN205373355U (en) * | 2015-12-16 | 2016-07-06 | 中联装备集团北新机械有限公司 | Adjusting device of desiccator air door antithetical couplet group |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4439930A (en) * | 1981-02-04 | 1984-04-03 | The Coe Manufacturing Company | Conveyor dryer and method of operation |
| DE29700769U1 (en) * | 1997-01-17 | 1997-03-13 | Babcock-BSH GmbH, 36251 Bad Hersfeld | Dryer for plasterboard |
| US20040221475A1 (en) * | 2003-05-02 | 2004-11-11 | Martin Theriault | Dry cabinets for use in moisture sensitive device management in electronics manufacturing |
| CN200946972Y (en) * | 2006-08-11 | 2007-09-12 | 晋州市东丰机械有限公司 | Uniform temperature drying kiln |
| CA2563456A1 (en) * | 2006-10-12 | 2008-04-12 | Bryan Wolowiecki | Method and apparatus for inhibiting pitch formation in the exhaust ducts of a veneer dryer |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508105U (en) * | 2009-08-25 | 2010-06-16 | 北新集团建材股份有限公司 | Air shutter of drier |
| CN201688676U (en) * | 2010-05-13 | 2010-12-29 | 泰山石膏股份有限公司 | Gypsum board dryer wind distribution device |
| CN204787732U (en) * | 2015-06-09 | 2015-11-18 | 天津市永昌焊丝有限公司 | A air regulation device for welding rod is dried |
| CN205373355U (en) * | 2015-12-16 | 2016-07-06 | 中联装备集团北新机械有限公司 | Adjusting device of desiccator air door antithetical couplet group |
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