CN201318863Y

CN201318863Y - Fungicide material vacuum continuous drying device and drying system

Info

Publication number: CN201318863Y
Application number: CNU200820159821XU
Authority: CN
Inventors: 孙敬权; 葛士福; 李新生; 徐勤江; 马晓; 唐启举; 王向真; 张小红
Original assignee: LIMIN CHEMICAL CO Ltd
Current assignee: Limin Chemical Co., Ltd.
Priority date: 2008-10-22
Filing date: 2008-10-22
Publication date: 2009-09-30
Anticipated expiration: 2018-10-22

Abstract

Disclosed is a fungicide material vacuum continuous drying device. The device comprises a drying main machine, a material feeder and a dry product cooler, wherein the material feeder feeds materials to the drying main machine, and the materials are discharged from the drying main machine after being dried and then are discharged after being cooled by the dry product cooler. The drying main machine comprises a drying cylinder; a material inlet of the drying main machine and a material outlet of the drying main machine are arranged on the drying cylinder; the material inlet and the material outlet of the drying main machine are respectively provided with a first powder switch valve and a second powder switch valve; flanges are respectively arranged at two ends of the drying cylinder; an agitator is arranged in the drying cylinder; the rotating shaft of the agitator is rotatably connected with the flanges at the two ends of the drying cylinder respectively and is connected with a motor; a vacuum pump which is used for maintaining vacuum in the drying cylinder is connected with the drying cylinder; a packing seal and a mechanical seal are respectively sheathed at two ends of the rotating shaft; the packing seal is located between the flange and the rotating shaft, and the mechanical seal is located outside the packing seal. The utility model also discloses a fungicide material vacuum continuous drying system which comprises five drying main machines arranged in parallel.

Description

For gloomy class material vacuum continuous drier and drying system

Technical field

The utility model relates to gloomy class material drying device and drying system of a kind of generation, relates in particular to vacuum drying, continuous mechanized production system.

Background technology

In generation,, gloomy class material referred to maneb, zineb, Mancozeb, belonged to the temperature-sensitive explosive material.Gloomy class material of generation oxidation Decomposition very easily in aerobic environment, until the blast of catching fire, even if after drying is finished, also must be chilled to environment temperature can discharging, and it also contains the crystallization water a little less than the part, and dry difficulty is bigger.

The drying mode of generation gloomy series products manufacturing enterprise employing mainly contains two kinds at present: (1) vacuum bipyramid drying, (2) inert gas shielding closed cycle drying.

The vacuum bipyramid the dry total man worker of employing operate.When dry; manually wet stock is sent in the drying machine; after having closed feed inlet and outlet, utilize vavuum pump to extract air in the drying machine, reach certain negative pressure after; open steam valve; steam enters in the drying machine chuck, and material is carried out the indirect drying, reaches the dry product moisture requirement after a period of time; steam off is sent into cooling water temperature and shut down discharging to room temperature.One 1.5 cubic metres double-cone dryer unit-hour output is 50 kilograms/hour, and large-scale production equipment needed thereby platform number is more, and floor space is bigger; The dry run heating is carried out with cooling is staggered, and power and thermal energy consumption are higher, and the thermal efficiency is extremely low; Charging and discharging are manually-operated entirely, and labour intensity is big, and material dissipates serious, and operating environment is poor.

The inert gas shielding closed cycle drying: by hermetic type flash dryer, cyclone separator,, sack cleaner waste-heat recoverer, circulating fan, spray column, heater and dry product cooler form.The course of work is: generation gloomy class material in the flash dryer of sealing with heating after nitrogen or carbon dioxide carry out caloic exchange, through cyclone separator, sack cleaner collection material, be cooled to the room temperature discharging through the dry product cooler again, this system can realize continuous production, reduced labour intensity, operating environment also is greatly improved.Shortcoming: product quality is slightly poor, the appearance color obfuscation, and it is bright-coloured to be not so good as vacuum drying; Be difficult for adding the material that stops active ingredient to be decomposed in the dry run, become more than 100 ℃ the time thick because of this material, influence the operation of sack cleaner rate, as not adding this material, heat storage resolution ratio is up to more than 5%, deficiency in economic performance, and the requirement (as content requirement greater than more than 95%) that does not reach high-end customer.

The utility model content

The utility model provide a kind of generation gloomy class material vacuum continuous drier and drying system, handling safety is continuous, labour intensity is low, production efficiency is high, less energy consumption, dissipation are low, effective content decomposition of little, product quality is excellent, production capacity is big characteristics.

The utility model adopts following technical scheme:

A kind of generation described in the utility model gloomy class material vacuum continuous drier, comprise main drying, feeder and dry product cooler, feeder is delivered to material to be dried the charging aperture of main drying, dried material is discharged and discharging after the cooling of dry product cooler from the discharging opening of main drying, described feeder adopts auger conveyor, main drying comprises drying, the charging aperture of main drying and the discharging opening of main drying are located on the drying, on the charging aperture of main drying and discharging opening, be respectively equipped with the first powder switch valve and the second powder switch valve, two ends at drying are respectively equipped with flange, in drying, be provided with agitator, the rotating shaft of agitator is rotationally connected with the flange at drying two ends respectively and links to each other with motor, on drying, be connected with the vavuum pump of vacuum in the tube that is used to keep dry, two ends in rotating shaft are with packing seal and mechanical seal respectively, and packing seal is between flange and rotating shaft, and mechanical seal is positioned at the gland sealed outside.

A kind of generation described in the utility model gloomy class material vacuum continuous drying system, comprise 5 main dryings that be arranged in parallel, feeder and dry product cooler, feeder is delivered to material to be dried the charging aperture of each main drying, dried material is discharged and discharging after corresponding dry product cooler cooling from the discharging opening of each main drying respectively, main drying comprises drying, described feeder adopts auger conveyor, the charging aperture of main drying and the discharging opening of main drying are located on the drying, on the charging aperture of main drying and discharging opening, be respectively equipped with the first powder switch valve and the second powder switch valve, two ends at drying are respectively equipped with flange, in drying, be provided with agitator, the rotating shaft of agitator is rotationally connected with the flange at drying two ends respectively and links to each other with motor, on drying, be connected with the vavuum pump of vacuum in the tube that is used to keep dry, two ends in rotating shaft are with packing seal and mechanical seal respectively, and packing seal is between flange and rotating shaft, and mechanical seal is positioned at the gland sealed outside.

Compared with prior art, the utlity model has following advantage:

1, vacuum rake dryer adopts the slender type non-standard equipment, increases heat exchange area, improves output.2, drying medium is selected conduction oil for use, can improve heating-up temperature, shortens drying time, recycles, and improves the heat energy utilization rate.3, packing seal is adopted in the vacuum rake dryer sealing, the triple seal mode of mechanical seal and the combination of vacuum equilibrium phase, packing seal can stop the leakage of powder effectively, mechanical seal can be implemented effective seal to air, avoid oxygen to enter dryer inner, feed inlet and outlet adopts pneumatic vacuum seal valve, overcome the influence of pressure factor to sealing, easy to operate, sealing is reliable, guarantee dry run vacuum height, drying is carried out under the vacuum oxygen free condition, realize the anaerobic drying, can not produce the danger of oxidation Decomposition and combustion explosion, to guarantee product quality.Realize continuous drying.4, dry and cooling is not located in the same equipment and carries out, and with the continuity of realization dry run, and significantly improves the thermal efficiency.5, for preventing the decomposition of effective ingredient, add and siccative when drawing off vacuum drier at wet feed, adopt inert gas shielding.6, less for gloomy class material dry product granularity, but be to realize continuity, be provided with the sack cleaner of automatic ash removing at the vacuum tube place on drying machine top, in case vacuum line stops up and siccative dissipates.7, compare with the inert gas shielding closed cycle drying, the utility model superior product quality, appearance color is pure; can add the material that stops active ingredient to be decomposed when dry; make heat storage resolution ratio less than 2%, and help product is risen to high-grade, satisfy the demand of high-end customer.8, compare with vacuum bipyramid drying, separate unit output significantly improves, and unit-hour output is brought up to 0.2T/H by 0.05T/H, can realize large-scale production.9, the dry cylindrical shell of vacuum bipyramid rotates, and can't realize automatic feed/discharge and produces continuously, and the utility model adopts the fixing drying machine of cylindrical shell, and inner rake teeth rotates, and has realized that mechanization produces continuously, and labour intensity is little, and material dissipates few.10, the vacuum bipyramid drying of clearance-type dry is carried out in same equipment with cooling, during drying machine and when heating and cool off, hockets, and the thermal efficiency is very low, and the utility model is with drying and cool off to separate and carry out, and has improved heat utilization efficiency greatly.11, in powder block valve of the present utility model, support tray by pumping board and form pumping board sealing chute, the utility model has utilized pumping board to support tray, reduced to pile up the area of powder, thereby reduced the accumulating amount of powder, and these a spot of powders that are deposited on the pumping board support tray are removed by pumping board in pumping board push-and-pull process, finally avoid the powder obstruction, guaranteed sealing.12, the utility model vacuum drying system, its nucleus equipment are rake formula vacuum driers, with regard to rake type drier are not accommodate gloomy class dry materials of generation.Reason is: under high vacuum state, sealing does not reach zero leakage, and temperature of charge reaches 150 degree in the drying machine, even there is very micro-air leakage part to cause material to decompose.We had contrast when pilot experiment: adopt existing Sealing Technology (packing seal), and same 5 hours of dry run, the dry product material active constituent content 70%-75% material color blackening of dry back is decomposed obviously; And adopt sealer with assembled of the present utility model, and same dry run, dry product active constituent content 93%-95%, more stable, outward appearance is bright orange, quality better.Rake type drier is formed the cover gloomy class drying material in vacuum system of complete, continuous generation in conjunction with wet product feed of the present utility model, dry product drawing mechanism.

Description of drawings

Fig. 1 is the structural representation of the utility model drying device.

Fig. 2 is the structural representation of the utility model drying system.

Fig. 3 is the structural representation of the utility model main drying.

Fig. 4 is the partial structurtes enlarged diagram of the utility model main drying.

Fig. 5 is the front view of the utility model powder block valve.

Fig. 6 is the vertical view of the utility model powder block valve.

Fig. 7 is the A-A cutaway view of the utility model powder block valve.

Fig. 8 is the structural front view of the utility model feeder.

Fig. 9 is the vertical view of the utility model feeder.

Figure 10 is the partial structurtes enlarged drawing of the utility model feeder.

The specific embodiment

Embodiment 1

A kind of generation gloomy class material vacuum continuous drier, with reference to Fig. 1, comprise main drying 1, feeder 2 and dry product cooler 3, feeder 2 is delivered to material to be dried the charging aperture of main drying 1, dried material is discharged and discharging after 3 coolings of dry product cooler from the discharging opening of main drying 1, described feeder 2 adopts auger conveyor, with reference to Fig. 3, main drying 1 comprises drying 11, the discharging opening of the charging aperture of main drying 1 and main drying 1 is located on the drying 11, on the charging aperture of main drying 1 and discharging opening, be respectively equipped with the first powder switch valve 17 and the second powder switch valve 18, be respectively equipped with flange 111 at the two ends of drying 11, in drying 11, be provided with agitator 112, the rotating shaft 113 of agitator 112 is rotationally connected with the flange 111 at drying 11 two ends respectively and links to each other with motor, on drying 11, be connected with the vavuum pump 4 of vacuum in the tube 11 that is used to keep dry, be with packing seal 14 and mechanical seal 15 respectively at the two ends of rotating shaft 113, and packing seal 14 is between flange 111 and rotating shaft 113, and mechanical seal 15 is positioned at the outside of packing seal 14.

With reference to Fig. 4, sheathed bearing block 13 in the rotating shaft 113, in bearing block 13, be provided with a cavity, described packing seal element 14 is positioned at cavity, mechanical seal 15 is located at the outside of bearing block 13, on bearing block 13, be provided with the vacuum draw mouth 16 that communicates with cavity, and this vacuum draw mouth 16 is connected with vavuum pump 4.Sheathed seal cover 141 in rotating shaft 113 is adopted in packing seal 14, and fills filler in by rotating shaft 113, flange 111 and seal cover 141 formed spaces.Mechanical seal 15 comprises decides ring 151, rotating ring 152 and seal receptacle 156, surely encircling 151 is fixed in the rotating shaft 113, rotating ring 152 is set in the rotating shaft 113, encircle surely 151 and rotating ring 152 between be provided with stage clip 153, described seal receptacle 156 is located at the outside of bearing block 13, is provided with first sealing ring 154 on rotating ring 152, on seal receptacle 156, be provided with second sealing ring 155, under the effect of stage clip 153, first sealing ring 154 and second sealing ring 155 offset, and form sealing.

With reference to Fig. 5～7, the first powder switch valve 17 and/or the second powder switch valve 18 adopt the powder block valve, this powder block valve comprises valve body 1701 and movable pumping board 1702, on valve body 1701, be provided with ladder hole 1711, the small bore end of this ladder hole 1711 is a feed end, the big nose end of this ladder hole 1711 is a discharge end, on valve body 1701, be provided with pumping board gateway 1712, on the macropore inwall of ladder hole 1711, be provided with pumping board support tray 1705 and with ladder hole 1711 step surface constitute pumping board sealing chute, in powder block valve closed condition, movable pumping board 1702 enters from pumping board gateway 1712, enter pumping board sealing chute, feed end and discharge end are isolated in the both sides of movable pumping board 1702 until movable pumping board 1702, in powder block valve opening, pumping board sealing chute is withdrawed from movable pumping board 1702 pumpbacks, get back to 1712 places, pumping board gateway until movable pumping board 1702, feed end communicates with discharge end.

Embodiment 2

A kind of generation gloomy class material vacuum continuous drying system, with reference to Fig. 2, comprise 5 main dryings that be arranged in parallel 1, feeder 2 and dry product cooler 3, feeder 2 is delivered to material to be dried the charging aperture of each main drying 1, dried material is discharged and discharging after corresponding dry product cooler 3 coolings from the discharging opening of each main drying 1 respectively, described feeder 2 adopts auger conveyor, main drying 1 comprises drying 11, the discharging opening of the charging aperture of main drying 1 and main drying 1 is located on the drying 11, on the charging aperture of main drying 1 and discharging opening, be respectively equipped with the first powder switch valve 17 and the second powder switch valve 18, be respectively equipped with flange 111 at the two ends of drying 11, in drying 11, be provided with agitator 112, the rotating shaft 113 of agitator 112 is rotationally connected with the flange 111 at drying 11 two ends respectively and links to each other with motor, on drying 11, be connected with the vavuum pump 4 of vacuum in the tube 11 that is used to keep dry, be with packing seal 14 and mechanical seal 15 respectively at the two ends of rotating shaft 113, and packing seal 14 is between flange 111 and rotating shaft 113, and mechanical seal 15 is positioned at the outside of packing seal 14.

In the prior art, there is multiple feeder 2 to select for the utility model, in the present embodiment, with reference to Fig. 8, Fig. 9, feeder 2 comprises

rubber conveyer

21 and 5 surge bunkers 22, the outlet of 5 surge bunkers 22 links to each other with the charging aperture of 5 main dryings 1 respectively, the import of one of them surge bunker is positioned at the below of rubber conveyer 21 ends, the import of all the other four surge bunkers is positioned at the below of the transmission adhesive tape of rubber conveyer 21, on rubber conveyer 21, be provided with four blanking devices 23, these four blanking devices 23 comprise support 231, an end that is provided with material scraping plate 232 and support 231 and material scraping plate 232 on support 231 is rotationally connected, between the other end of support 231 and material scraping plate 232, be provided with the electronic pull bar 233 that is used for pull-up or falls material scraping plate, described electronic pull bar 233 can be buied on market, and described material scraping plate 232 is triangular in shape, and is made up of substrate and rubber flap, rubber flap is located on the substrate, and rubber flap is faced mutually with the transmission adhesive tape of rubber conveyer 21.With reference to Fig. 2, the inlet that is provided with auger conveyor 5 and auger conveyor 5 between main drying 1 and dry product cooler 3 links to each other with the discharging opening of main drying 1, and the outlet of auger conveyor 5 links to each other with the import of dry product cooler 3.

This example course of work is as follows:

From the wet stock of synthesizing section through rubber conveyer feeding forward, scrape into corresponding wet product storehouse through corresponding material scraper, open rake formula main drying, wet stock enters rake formula main drying, opening the vacuum pumping port valve makes the rake type drier inner chamber communicate with vacuum system, in the rake type drier chuck, feed the conduction oil that heats through oil oven 7 by oil pump 6, material is carried out indirect, vacuum system is in time taken the steam of evaporation away, material rapid draing when material moisture meets standard-required, is opened discharging opening, material enters dry product cooler cooling back discharging, and five drying machines move successively.

Whole dry run of the present utility model is continuous, stable, safe, efficient, energy-conservation, and operating cost is low.

Unit operating cost contrast (dry dry product per ton)

The utility model drying system 967 yuan of operating costs of saving per ton.

Claims

One kind generation gloomy class material vacuum continuous drier, comprise main drying (1), feeder (2) and dry product cooler (3), feeder (2) is delivered to material to be dried the charging aperture of main drying (1), dried material is discharged and discharging after dry product cooler (3) cooling from the discharging opening of main drying (1), described feeder (2) adopts auger conveyor, it is characterized in that main drying (1) comprises drying (11), the discharging opening of the charging aperture of main drying (1) and main drying (1) is located on the drying (11), on the charging aperture of main drying (1) and discharging opening, be respectively equipped with the first powder switch valve (17) and the second powder switch valve (18), be respectively equipped with flange (111) at the two ends of drying (11), in drying (11), be provided with agitator (112), the rotating shaft (113) of agitator (112) is rotationally connected with the flange (111) at drying (11) two ends respectively and links to each other with motor, on drying (11), be connected with the vavuum pump (4) of vacuum in the tube (11) that is used to keep dry, be with packing seal (14) and mechanical seal (15) respectively at the two ends of rotating shaft (113), and packing seal (14) is positioned between flange (111) and the rotating shaft (113), and mechanical seal (15) is positioned at the outside of packing seal (14).
2. generation according to claim 1 gloomy class material vacuum continuous drier, it is characterized in that going up sheathed bearing block (13) in rotating shaft (113), in bearing block (13), be provided with a cavity, described packing seal element (14) is positioned at cavity, mechanical seal (15) is located at the outside of bearing block (13), on bearing block (13), be provided with the vacuum draw mouth (16) that communicates with cavity, and this vacuum draw mouth (16) is connected with vavuum pump (4).
3. generation according to claim 2 gloomy class material vacuum continuous drier, it is characterized in that packing seal (14) employing at the last sheathed seal cover (141) of rotating shaft (113), and in by rotating shaft (113), flange (111) and the formed space of seal cover (141), fill filler.
4. generation according to claim 2 gloomy class material vacuum continuous drier, it is characterized in that mechanical seal (15) comprises decides ring (151), rotating ring (152) and seal receptacle (156), fixed ring (151) is fixed in the rotating shaft (113), rotating ring (152) is set in the rotating shaft (113), between fixed ring (151) and rotating ring (152), be provided with stage clip (153), described seal receptacle (156) is located at the outside of bearing block (13), on rotating ring (152), be provided with first sealing ring (154), on seal receptacle (156), be provided with second sealing ring (155), under the effect of stage clip (153), first sealing ring (154) offsets with second sealing ring (155), forms sealing.
5. generation according to claim 1 gloomy class material vacuum continuous drier, it is characterized in that the first powder switch valve (17) and/or the second powder switch valve (18) adopt the powder block valve, this powder block valve comprises valve body (1701) and movable pumping board (1702), on valve body (1701), be provided with ladder hole (1711), the small bore end of this ladder hole (1711) is a feed end, the big nose end of this ladder hole (1711) is a discharge end, on valve body (1701), be provided with pumping board gateway (1712), on the macropore inwall of ladder hole (1711), be provided with pumping board support tray (1705) and with ladder hole (1711) step surface constitute pumping board sealing chute, in powder block valve closed condition, movable pumping board (1702) enters from pumping board gateway (1712), enter pumping board sealing chute, feed end and discharge end are isolated in the both sides of movable pumping board (1702) until movable pumping board (1702), in powder block valve opening, movable pumping board (1702) pumpback, withdraw from pumping board sealing chute, get back to pumping board gateway (1712) until movable pumping board (1702) and locate, feed end communicates with discharge end.
One kind generation gloomy class material vacuum continuous drying system, comprise 5 main dryings that be arranged in parallel (1), feeder (2) and dry product cooler (3), feeder (2) is delivered to material to be dried the charging aperture of each main drying (1), dried material is discharged and discharging after dry product cooler (3) cooling from the discharging opening of each main drying (1) respectively, described feeder (2) adopts auger conveyor, it is characterized in that main drying (1) comprises drying (11), the discharging opening of the charging aperture of main drying (1) and main drying (1) is located on the drying (11), on the charging aperture of main drying (1) and discharging opening, be respectively equipped with the first powder switch valve (17) and the second powder switch valve (18), be respectively equipped with flange (111) at the two ends of drying (11), in drying (11), be provided with agitator (112), the rotating shaft (113) of agitator (112) is rotationally connected with the flange (111) at drying (11) two ends respectively and links to each other with motor, on drying (11), be connected with the vavuum pump (4) of vacuum in the tube (11) that is used to keep dry, be with packing seal (14) and mechanical seal (15) respectively at the two ends of rotating shaft (113), and packing seal (14) is positioned between flange (111) and the rotating shaft (113), and mechanical seal (15) is positioned at the outside of packing seal (14).
7. generation according to claim 6 gloomy class material vacuum continuous drying system, it is characterized in that feeder (2) comprises rubber conveyer (21) and 5 surge bunkers (22), the outlet of 5 surge bunkers (22) links to each other with the charging aperture of 5 main dryings (1) respectively, the import of one of them surge bunker is positioned at the terminal below of rubber conveyer (21), the import of all the other four surge bunkers is positioned at the below of the transmission adhesive tape of rubber conveyer (21), on rubber conveyer (21), be provided with four blanking devices (23), these four blanking devices (23) comprise support (231), an end that is provided with material scraping plate (232) and support (231) and material scraping plate (232) on support (231) is rotationally connected, and is provided with the electronic pull bar (233) that is used for pull-up or falls material scraping plate between the other end of support (231) and material scraping plate (232).
8. generation according to claim 7 gloomy class material vacuum continuous drying system, it is characterized in that material scraping plate (232) is triangular in shape, and be made up of substrate and rubber flap, rubber flap is located on the substrate, and rubber flap is faced mutually with the transmission adhesive tape of rubber conveyer (21).
9. generation according to claim 6 gloomy class material vacuum continuous drying system, it is characterized in that the inlet that is provided with auger conveyor (5) and auger conveyor (5) between main drying (1) and dry product cooler (3) links to each other with the discharging opening of main drying (1), the outlet of auger conveyor (5) links to each other with the import of dry product cooler (3).
10. generation according to claim 6 gloomy class material vacuum continuous drying system, it is characterized in that the first powder switch valve (17) and/or the second powder switch valve (18) adopt the powder block valve, this powder block valve comprises valve body (1701) and movable pumping board (1702), on valve body (1701), be provided with ladder hole (1711), the small bore end of this ladder hole (1711) is a feed end, the big nose end of this ladder hole (1711) is a discharge end, on valve body (1701), be provided with pumping board gateway (1712), on the macropore inwall of ladder hole (1711), be provided with pumping board support tray (1705) and with ladder hole (1711) step surface constitute pumping board sealing chute, in powder block valve closed condition, movable pumping board (1702) enters from pumping board gateway (1712), enter pumping board sealing chute, feed end and discharge end are isolated in the both sides of movable pumping board (1702) until movable pumping board (1702), in powder block valve opening, movable pumping board (1702) pumpback, withdraw from pumping board sealing chute, get back to pumping board gateway (1712) until movable pumping board (1702) and locate, feed end communicates with discharge end.