CN209193564U - Ammonium acid fluoride efficient crystallization equipment - Google Patents

Abstract

The utility model provides a kind of ammonium acid fluoride efficient crystallization equipment, including staving and bung, and staving is equipped with screw rod, and the sliding block of screw rod is equipped with disk-shaped push plate, and push plate outer wall is supported with inner wall of barrel；Bung is equipped with a plurality of cooling tube, is equipped with drinking-water pipe in each cooling tube, drinking-water pipe is connected to through collecting pipe and the 4th pipeline with the second water pump；The outer sheath of staving is equipped with cooling dome, clip cavity is equipped in cooling dome, the top of clip cavity is connected to the first water tank by outlet pipe, bottom is connected to by water inlet pipe with the first water pump, first water tank is connected to the second water tank by first pipe, the side wall of second water tank is equipped with cooling piece, first water pump is connected to the second water tank by second pipe, and the first water pump is connected to water inlet pipe；Second water pump is connected to the first water tank by third pipeline, and collecting pipe is connected to water inlet pipe by the 5th pipeline, and cooling tube is corresponded in push plate equipped with multiple through-holes；It uses water-cooled cooling mode to cool down ammonium hydrogen fluoride solution, improves production efficiency.

Description

Ammonium acid fluoride efficient crystallization equipment

Technical field

The utility model relates to ammonium acid fluoride crystallization arts, more particularly to a kind of ammonium acid fluoride efficient crystallization equipment.

Background technique

Ammonium acid fluoride is a kind of with corrosive chemical substance, can dissolve glass, be slightly soluble in alcohol, be highly soluble in cold Water, and be very easy to deliquesce, it is mainly used for glass etching agent, disinfectant, surface treating agent of silicon element steel plate etc..

It needs for ammonium acid fluoride aqueous solution to be concentrated during wet production ammonium acid fluoride, crystallisation by cooling, traditional knot Brilliant device is that the liquid after concentration is both carried out nature in an open trough or forced ventilation is cold using slot type crystallisation by cooling But, crystallize out ammonium acid fluoride, but slot type cooler crystallizer takes up a large area, in order to improve cooling effect, the knot of use Brilliant slot is height trough very low and very big with air contact surfaces；Unlimited crystallization makes the dust and other impurities in air be easily accessible production In product, keep the stain in product higher, influence the quality of product, it is difficult to meet the product requirement of high-quality；Since slot type crystallizes Using air-cooled, cooling effect is undesirable, and crystallization time is long, and production capacity is few.

Utility model content

In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose a kind of hydrogen fluoride Ammonium efficient crystallization equipment, structure novel cool down ammonium hydrogen fluoride solution using water-cooled cooling mode, provide it is enough just In the region of ammonium hydrogen fluoride solution crystallisation by cooling, accelerate crystallisation by cooling, improves production efficiency.

For this purpose, the following technical solution is employed for the utility model:

The utility model provides a kind of ammonium acid fluoride efficient crystallization equipment, including rack and is fixed in the rack Staving, staving bottom connection is equipped with feeder pipe, and the feeder pipe is equipped with baiting valve, and the top cover of the staving is equipped with Bung, the bung are fixedly connected with the staving by screw, the bung be equipped with commissioning pipe, described commissioning pipe one end with Connection, the other end are covered with sealing cover inside the staving；The bottom interior wall of the staving is fixedly installed with support frame, the branch Screw rod is equipped with by bearing between support and the bung, the bung and and driving motor are run through in the top of the screw rod Output shaft connected by shaft coupling, the driving motor is fixedly mounted in the rack, is arranged on the screw rod along institute The sliding block of screw rod sliding is stated, push plate is fixed on the outside of the sliding block, the push plate is in disk-shaped and outer wall and the staving Inner wall sliding supports；

The bung is equipped with a plurality of cooling tube being vertically arranged, and the low side of the cooling tube seals and protrudes into the bucket Internal portion, the top of the cooling tube are welded and fixed with the bung, the open top of the cooling tube and be located at the bung Outside；Drinking-water pipe is equipped in each cooling tube, the bottom end of the drinking-water pipe is protruded into the cooling tube and close to described The top of the bottom of cooling tube, the bung is equipped with collecting pipe, and the top of each drinking-water pipe is connected to the collecting pipe；Institute The outer sheath for stating staving is equipped with cooling dome, and the cooling dome covers the staving side wall and bottom, is equipped with folder in the cooling dome Chamber, the shape of the clip cavity are adapted with the cooling hood shape, and the top sidewall of the cooling dome is fixed with and the folder The outlet pipe of chamber connection, the bottom sidewall of the cooling dome are fixed with the water inlet pipe being connected to the clip cavity, the water inlet pipe It is equipped with the first solenoid valve, the first water tank and the second water tank are fixedly installed in the rack, first water tank is located at described The bottom sidewall of the top of second water tank and first water tank and the top sidewall of second water tank are connected by first pipe Logical, the first pipe is equipped with second solenoid valve, and the top of first water tank is connected with the clip cavity by the outlet pipe It is logical, cooling piece is installed, the chill surface of the cooling piece is towards setting inside second water tank on the side wall of second water tank It sets；The lower section of second water tank is equipped with the first water pump, and first water pump is fixedly mounted in the rack, first water The water inlet of pump is connected to the bottom of second water tank by second pipe, the water outlet of first water pump and the water inlet Pipe is connected to by No.1 tee tube；The top of first water tank is equipped with the second water pump, and second water pump is fixedly mounted on institute It states in rack, the water outlet of second water pump is connected to the top of first water tank by third pipeline, second water The water inlet connection of pump is equipped with the 4th pipeline, and the 4th pipeline is equipped with third solenoid valve, the other end of the 4th pipeline It is connected to the collecting pipe by No. two tee tubes, passes through the 5th pipeline between No. two tee tubes and the No.1 tee tube Connection, the 5th pipeline are equipped with the 4th solenoid valve；

The cooling tube is corresponded in the push plate equipped with multiple through-holes, the bottom of each through-hole is correspondingly provided with ring-type The first scraping block, the inner wall of first scraping block and the outer wall sliding of the cooling tube support.

In the utility model preferred technique scheme, the bottom margin of the push plate is fixed with the second scraping block, and described The inclined bottom surface of two scraping block is arranged and inclination lower end supports the inner wall of barrel；The bottom margin of first scraping block tilts It is arranged and tilts the outer wall that lower end supports the cooling tube.

In the utility model preferred technique scheme, the bottom of the screw rod is fixed with strut, one end of the strut Be fixedly welded with the screw rod, the other end is fixed with scraper plate, the sliding of the scraper plate and the staving bottom interior wall supports.

In the utility model preferred technique scheme, the staving bottom structure funnel-shaped, the scraper plate and the bucket Body bottom shape is adapted and supports the staving bottom interior wall.

In the utility model preferred technique scheme, the side wall of the feeder pipe is equipped with drain pipe, and the drain pipe is located at The top of the baiting valve, the drain pipe are equipped with switch valve.

The utility model has the following beneficial effects:

A kind of ammonium acid fluoride efficient crystallization equipment provided by the utility model, structure novel, cooling dome, clip cavity, water outlet Matching between pipe, water inlet pipe, drinking-water pipe, collecting pipe, the first water tank, the second water tank, cooling piece, the first water pump and the second water pump It closes, constitutes a water-cooling circulating system, provide enough areas convenient for crystallisation by cooling for the ammonium hydrogen fluoride solution inside staving Domain, effectively acceleration crystallisation by cooling, improve production efficiency；And driving motor, screw rod, push plate cooperation, can will be adhered to cooling tube The crystalline solid of outer wall and inner wall of barrel scrapes, and prevents crystalline solid accumulation, covering, avoid influencing normal crystallisation by cooling it is normal into Row, further increases production efficiency.

Detailed description of the invention

Fig. 1 is a kind of structural representation of the ammonium acid fluoride efficient crystallization equipment provided in specific embodiment of the utility model Figure；

Fig. 2 is the water-cooling cover provided in specific embodiment of the utility model, the first water tank, the second water tank, drinking-water pipe phase The structural schematic diagram mutually cooperated；

Fig. 3 is the structural schematic diagram of the push plate provided in specific embodiment of the utility model.

In figure:

100, rack；200, staving；210, feeder pipe；220, baiting valve；230, support frame；240, drain pipe；241, it opens Close valve；300, bung；310, commissioning pipe；320, sealing cover；330, cooling tube；400, screw rod；410, sliding block；420, push plate； 430, through-hole；440, the first scraping block；450, the second scraping block；460, strut；470, scraper plate；500, driving motor；610, the first pipe Road；611, second solenoid valve；620, second pipe；630, third pipeline；640, the 4th pipeline；641, third solenoid valve；650, 5th pipeline；651, the 4th solenoid valve；660, drinking-water pipe；670, collecting pipe；680, No.1 tee tube；690, No. two tee tubes； 700, cooling dome；710, clip cavity；720, outlet pipe；730, water inlet pipe；731, the first solenoid valve；810, the first water tank；820, Two water tanks；821, cooling piece；830, the first water pump；840, the second water pump.

Specific embodiment

Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, a kind of ammonium acid fluoride efficient crystallization equipment is disclosed in specific embodiment of the utility model, Including rack 100 and the staving 200 being fixed in the rack 100,200 bottom of the staving connection is equipped with feeder pipe 210, The feeder pipe 210 is equipped with baiting valve 220, and the top cover of the staving 200 is equipped with bung 300, the bung 300 with it is described Staving 200 is fixedly connected by screw, and the bung 300 is equipped with commissioning pipe 310, described 310 one end of commissioning pipe and the bucket Connection, the other end are covered with sealing cover 320 inside body 200；The bottom interior wall of the staving 200 is fixedly installed with support frame 230, Screw rod 400 is equipped with by bearing between support frame as described above 230 and the bung 300, the top of the screw rod 400 is through described It bung 300 and is connect with the output shaft of driving motor 500 by shaft coupling, the driving motor 500 is fixedly mounted on the machine On frame 100, the sliding block 410 along the screw rod 400 sliding is arranged on the screw rod 400, the outside fixation of the sliding block 410 is set There is push plate 420, the push plate 420 is supported in disk-shaped and outer wall and 200 inner wall of staving sliding；

The bung 300 is equipped with a plurality of cooling tube 330 being vertically arranged, and the low side of the cooling tube 330 is sealed and stretched Enter inside the staving 200, the top of the cooling tube 330 is welded and fixed with the bung 300, the top of the cooling tube 330 End is opened wide and is located at the outside of the bung 300；Drinking-water pipe 660, the drinking-water pipe 660 are equipped in each cooling tube 330 Bottom end protrude into the bottom in the cooling tube 330 and close to the cooling tube 330,330 top of cooling tube and the pumping Sealing-plug is equipped between the outer wall of water pipe 660；The top of the bung 300 is equipped with collecting pipe 670, each drinking-water pipe 660 Top is connected to the collecting pipe 670；The outer sheath of the staving 200 is equipped with cooling dome 700, and the cooling dome 700 covers 200 side wall of staving and bottom, the cooling dome 700 is interior to be equipped with clip cavity 710, the shape and the cooling of the clip cavity 710 700 shapes to be covered to be adapted, the top sidewall of the cooling dome 700 is fixed with the outlet pipe 720 being connected to the clip cavity 710, The bottom sidewall of the cooling dome 700 is fixed with the water inlet pipe 730 being connected to the clip cavity 710, sets on the water inlet pipe 730 There is the first solenoid valve 731, the first water tank 810 and the second water tank 820, first water tank are fixedly installed in the rack 100 810 are located at the top of the top of second water tank 820 and the bottom sidewall of first water tank 810 and second water tank 820 Portion's side wall is connected to by first pipe 610, and the first pipe 610 is equipped with second solenoid valve 611, first water tank 810 Top and the clip cavity 710 be connected to by the outlet pipe 720, cooling piece is installed on the side wall of second water tank 820 821, the chill surface of the cooling piece 821 is towards being arranged inside second water tank 820；The lower section of second water tank 820 is set There is the first water pump 830, first water pump 830 is fixedly mounted in the rack 100, the water inlet of first water pump 830 It is connected to the bottom of second water tank 820 by second pipe 620, the water outlet of first water pump 830 and the water inlet Pipe 730 is connected to by No.1 tee tube 680；The top of first water tank 810 is equipped with the second water pump 840, second water pump 840 are fixedly mounted in the rack 100, and the water outlet of second water pump 840 and the top of first water tank 840 pass through Third pipeline 630 is connected to, and the water inlet of second water pump 840, which is connected to, is equipped with the 4th pipeline 640, on the 4th pipeline 640 Equipped with third solenoid valve 641, the other end and the collecting pipe 670 of the 4th pipeline 640 are connected by No. two tee tubes 690 It is logical, it is connected between No. two tee tubes 690 and the No.1 tee tube 680 by the 5th pipeline 650, the 5th pipeline 650 are equipped with the 4th solenoid valve 651；

As shown in figure 3, corresponding to the cooling tube 330 in the push plate 420 equipped with multiple through-holes 430, each through-hole 430 bottom is correspondingly provided with cricoid first scraping block 440, and the inner wall of first scraping block 440 is outer with the cooling tube 330 Wall sliding supports.

A kind of above-mentioned ammonium acid fluoride efficient crystallization equipment, structure novel, the cooling dome 700, the clip cavity 710, It is the outlet pipe 720, the water inlet pipe 730, the drinking-water pipe 660, the collecting pipe 670, first water tank 810, described Cooperation between second water tank 820, the cooling piece 821, first water pump 830 and second water pump 840 constitutes one Water-cooling circulating system provides enough regions convenient for crystallisation by cooling for the ammonium hydrogen fluoride solution inside the staving 200, has Effect accelerates crystallisation by cooling, improves production efficiency；And the driving motor 500, the screw rod 400, the push plate 420 cooperation, The crystalline solid for being adhered to 200 inner wall of 330 outer wall of cooling tube and the staving can be scraped, prevent crystalline solid accumulation, covering, It avoids influencing being normally carried out for normal crystallisation by cooling, further increases production efficiency.

Further, the bottom margin of the push plate 420 is fixed with the second scraping block 450, the bottom of second scraping block 450 Face, which is obliquely installed and tilts lower end, supports 200 inner wall of staving；The bottom margin of first scraping block 440 is obliquely installed, And tilt the outer wall that lower end supports the cooling tube 330；The design of second scraping block 450 can be by 200 inner wall of staving Crystalline solid scrape, the structure of second scraping block 450 and first scraping block 440, which is as above arranged, can be improved scraping for crystalline solid Speed, and guarantee to scrape effect, it is ensured that the normal crystallization process of crystal region, to improve production efficiency.

Further, the bottom of the screw rod 400 is fixed with strut 460, one end of the strut 460 and the screw rod 400 are fixedly welded, the other end is fixed with scraper plate 470, and the scraper plate 470 is supported with 200 bottom interior wall of staving sliding；Institute On the one hand the design for stating strut 460 and the scraper plate 470 can stir the solution staving 200 inside, acceleration solution with it is described The contact of 330 outer wall of 200 inner wall of staving and the cooling tube, to promote crystallization process；On the other hand institute can will be then adhered to The crystalline solid for stating 200 inner wall bottom of staving scrapes, and prevents crystalline solid from covering cooled region, avoids influencing normal crystallization process.

Further, 200 bottom of staving structure funnel-shaped, the scraper plate 470 and 200 bottom shape of staving It is adapted and supports 200 bottom interior wall of staving；200 bottom of staving is funnel-shaped to be facilitated inside the staving 200 The outlet of solution and crystalline solid, the scraper plate 470 is adapted with 200 bottom shape of staving can be convenient for adhering to and the bucket 200 bottom of body fluorination sodium crystal scrapes, and prevents from accumulating.

Further, the side wall of the feeder pipe 210 is equipped with drain pipe 240, and the drain pipe 240 is located at the baiting valve 220 top, the drain pipe 240 are equipped with switch valve 241；The drain pipe 240 is located at the top of the baiting valve 220, The drain pipe 240 is equipped with switch valve 241；The design of the drain pipe 240 can be convenient for the discharge of surplus solution after reacting, Then it is convenient for the collection of sodium fluoride crystalline solid；It should be noted that the connectivity part of the drain pipe 240 and the feeder pipe 210 Equipped with strainer.

Working principle:

When the utility model at work, through the commissioning pipe 310 toward launching a certain amount of saturation inside the staving 200 Ammonium acid fluoride aqueous solution then starts the cooling piece 821 and carries out one end time to the coolant liquid in second water tank 820 Cooling starts first water pump 830 after preset cooling time reaches, and opens the 4th solenoid valve 651, and described the One water pump 830 feeds the coolant liquid in second water tank 820 through freezing in the cooling tube 330, reaches to preset time Afterwards, the 4th solenoid valve 651 is closed, first solenoid valve 731 is and then opened, the coolant liquid of low temperature enters the clip cavity In 710, after preset time reaches, first water pump 830 is closed, the cryogenic liquid of the first batch, which supplies, to be completed；Then The second solenoid valve 611 is opened, the room temperature cooling liquid in first water tank 810 enters second water tank 820, described Freezed under the action of cooling piece 821, cooled down；At the same time, the driving motor 500 starts, and drives 420 edge of push plate 400 vertical movable of screw rod drives the scraper plate 420 along the 200 inner wall lower rotation of staving, in the staving 200 The ammonium acid fluoride aqueous solution in portion is contacted with the outer wall of 200 inner wall of staving, the cooling tube 330, crystallisation by cooling, and crystalline solid is viscous It is attached to the outer wall of the cooling tube 330 and the inner wall of the staving 200, crystalline solid is in the push plate 420 and the scraper plate 470 It is detached under effect from 330 outer wall of cooling tube and 200 inner wall of the staving；Presetting for cryogenic liquid to the first batch is cold But after time arrival, start second water pump 840, open the third solenoid valve 641, second water pump 840 passes through institute Drinking-water pipe 660 is stated to pump the coolant liquid in the cooling tube 330 to first water tank 810, after preset time arrival, The third solenoid valve 641 and second water pump 840 are closed, first water pump 830 is and then started, opens the described 4th Solenoid valve 651, first water pump 830 will be described in the coolant liquid infeeds of the second batch through freezing in second water tank 820 In cooling tube 330, after preset time arrival, the 4th solenoid valve 651 is closed, and then opens first solenoid valve 731, the coolant liquid of the low temperature of the second batch enters in the clip cavity 710, and excessive coolant liquid goes out described in the clip cavity 710 Water pipe 720 flows in first water tank 810, the crystallization process in the replacement process of coolant liquid, inside the staving 200 And scraping process is always in progress；The replacement process of above-mentioned coolant liquid is so repeated, until default crystallisation by cooling duration, stops The only cooling piece 821 closes the driving motor 500, then opens the switch valve 241, and the solution after reaction is discharged, It after solution is drained, opens the driving motor 500 and opens the baiting valve 220, ammonium acid fluoride crystal is from the baiting valve 220 discharges, complete the preparation of ammonium acid fluoride crystal；Wherein, it before stopping the driving motor 500, needs the cooling tube Coolant liquid in 330 is pumped into first water tank 810, for next batch ammonium hydrogen fluoride solution carry out crystallization prepare； It should be noted that the driving motor 500, first water pump 830, second water pump 840, the cooling piece 821, institute State the first solenoid valve 731, the second solenoid valve 611, the third solenoid valve 641, the 4th solenoid valve 651 with control Device electrically connects, and the button of multiple each electrical part start and stop of control is provided on the controller.

The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to In the range of the utility model protection.

Claims (5)

1. a kind of ammonium acid fluoride efficient crystallization equipment, including rack (100) and the staving being fixed on the rack (100) (200), staving (200) the bottom connection is equipped with feeder pipe (210), and the feeder pipe (210) is equipped with baiting valve (220), It is characterized by:

The top cover of the staving (200) is equipped with bung (300), and the bung (300) and the staving (200) are solid by screw Fixed connection, the bung (300) are equipped with commissioning pipe (310), and described commissioning pipe (310) one end and the staving (200) are internal Connection, the other end are covered with sealing cover (320)；The bottom interior wall of the staving (200) is fixedly installed with support frame (230), institute It states and is equipped with screw rod (400) between support frame (230) and the bung (300) by bearing, the top of the screw rod (400) is passed through It wears the bung (300) and is connect with the output shaft of driving motor (500) by shaft coupling, the driving motor (500) is fixed It is mounted on the rack (100), the sliding block (410) along the screw rod (400) sliding, institute is arranged on the screw rod (400) It states and is fixed on the outside of sliding block (410) push plate (420), the push plate (420) is in disk-shaped and outer wall and the staving (200) inner wall sliding supports；

The bung (300) be equipped with a plurality of cooling tube (330) being vertically arranged, the cooling tube (330) low side sealing and It is internal to protrude into the staving (200), top and the bung (300) of the cooling tube (330) are welded and fixed, the cooling tube (330) open top and the outside positioned at the bung (300)；Drinking-water pipe is equipped in each cooling tube (330) (660), the bottom in the cooling tube (330) and close to the cooling tube (330) is protruded into the bottom end of the drinking-water pipe (660), The top of the bung (300) be equipped with collecting pipe (670), the top of each drinking-water pipe (660) with the collecting pipe (670) Connection；The outer sheath of the staving (200) is equipped with cooling dome (700), and the cooling dome (700) covers staving (200) side Wall and bottom, the cooling dome (700) is interior to be equipped with clip cavity (710), the shape of the clip cavity (710) and the cooling dome (700) Shape is adapted, and the top sidewall of the cooling dome (700) is fixed with the outlet pipe (720) being connected to the clip cavity (710), The bottom sidewall of the cooling dome (700) is fixed with the water inlet pipe (730) being connected to the clip cavity (710), the water inlet pipe (730) the first solenoid valve (731) are equipped with, are fixedly installed with the first water tank (810) and the second water tank on the rack (100) (820), first water tank (810) is located at the top of second water tank (820) and the bottom of first water tank (810) Side wall is connected to the top sidewall of second water tank (820) by first pipe (610), is set on the first pipe (610) Have second solenoid valve (611), the top and the clip cavity (710) of first water tank (810) are connected by the outlet pipe (720) It is logical, it is equipped with cooling piece (821) on the side wall of second water tank (820), the chill surface of the cooling piece (821) is described in Setting inside second water tank (820)；The lower section of second water tank (820) is equipped with the first water pump (830), first water pump (830) it is fixedly mounted on the rack (100), the water inlet of first water pump (830) and second water tank (820) Bottom is connected to by second pipe (620), and the water outlet of first water pump (830) and the water inlet pipe (730) pass through No.1 Tee tube (680) connection；The top of first water tank (810) is equipped with the second water pump (840), and second water pump (840) is solid On the rack (100), the top of the water outlet of second water pump (840) and first water tank (810) is logical for Dingan County Third pipeline (630) connection is crossed, the water inlet connection of second water pump (840) is equipped with the 4th pipeline (640), the 4th pipe Road (640) is equipped with third solenoid valve (641), and the other end of the 4th pipeline (640) and the collecting pipe (670) pass through two Number tee tube (690) connection, by the 5th pipeline between No. two tee tubes (690) and the No.1 tee tube (680) (650) it is connected to, the 5th pipeline (650) is equipped with the 4th solenoid valve (651)；

The cooling tube (330) are corresponded on the push plate (420) equipped with multiple through-holes (430), the bottom of each through-hole (430) Portion is correspondingly provided with cricoid first scraping block (440), the inner wall of first scraping block (440) and the cooling tube (330) it is outer Wall sliding supports.

2. a kind of ammonium acid fluoride efficient crystallization equipment according to claim 1, it is characterised in that:

The bottom margin of the push plate (420) is fixed with the second scraping block (450), the inclined bottom surface of second scraping block (450) It is arranged and inclination lower end supports the staving (200) inner wall；The bottom margin of first scraping block (440) is obliquely installed, And tilt the outer wall that lower end supports the cooling tube (330).

3. a kind of ammonium acid fluoride efficient crystallization equipment according to claim 1, it is characterised in that:

The bottom of the screw rod (400) is fixed with strut (460), and one end and the screw rod (400) of the strut (460) are solid Fixed welding, the other end are fixed with scraper plate (470), and the scraper plate (470) supports with the sliding of the staving (200) bottom interior wall.

4. a kind of ammonium acid fluoride efficient crystallization equipment according to claim 3, it is characterised in that:

Staving (200) bottom structure funnel-shaped, the scraper plate (470) is adapted with the staving (200) bottom shape, And support the staving (200) bottom interior wall.

5. a kind of ammonium acid fluoride efficient crystallization equipment according to claim 1, it is characterised in that:

The side wall of the feeder pipe (210) is equipped with drain pipe (240), and the drain pipe (240) is located at the baiting valve (220) Top, the drain pipe (240) are equipped with switch valve (241).