CN213363043U

CN213363043U - Fluidized bed

Info

Publication number: CN213363043U
Application number: CN202022422686.7U
Authority: CN
Inventors: 杨廷文; 顾琦麟; 阚文生
Original assignee: Zhongyan Kunshan Co ltd
Current assignee: Zhongyan Kunshan Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-06-04
Anticipated expiration: 2030-10-27

Abstract

The utility model belongs to the technical field of the drying equipment technique and specifically relates to a boiling fluidized bed is related to, it includes the bed body and hot air device, the bed body is equipped with the inner chamber, the middle part of bed body inner chamber is equipped with the sieve, the outer wall of the bed body is equipped with carries vibrating motor, and the bed body is equipped with feed inlet and discharge gate respectively along material direction of delivery's both ends, hot air device is used for supplying hot-blastly to the inner chamber of the bed body, and hot air device sets up in one side of the bed body, the top of the bed body is equipped with the air outlet, the top of feed inlet is equipped with inside hollow feed bin. This application has and to realize smooth and easy pay-off to can guarantee the effect of the efficiency of drying operation.

Description

Fluidized bed

Technical Field

The application relates to the technical field of drying equipment, in particular to a boiling fluidized bed.

Background

The ammonium chloride is colorless crystal or white crystalline powder; no odor, salty and cool taste; and the ammonium chloride is easy to block when meeting water due to hygroscopicity, so that the ammonium chloride product needs to be dried. A boiling fluidized bed is typically used during the drying process of ammonium chloride.

Chinese utility model patent with publication number CN210718348U discloses a fluidized bed drying device, which comprises a bed body, a sieve plate and a heat exchanger. The bottom of the bed body is provided with four vibrating springs in a rectangular array mode, and the bed body is connected with the vibrating springs in a bolt fixing mode; the sieve plate is arranged at the upper part in the bed body and is connected with the bed body in a bolt fixing mode; one side of the bed body and the upper part of the bed cover are respectively provided with a corrugated hose, and the corrugated hose is connected with the bed body and the bed cover in a bolt fixing way; the heat exchanger is arranged on one side of the cyclone separator, and the heat exchanger is connected with the cyclone separator in a bolt fixing mode.

With respect to the related art in the above, the inventors consider that: when the water content of the material is higher or the feeding amount is too large, the material is easy to accumulate at the feeding port of the bed body, so that the feeding is not smooth, and the working efficiency of material drying treatment is influenced.

SUMMERY OF THE UTILITY MODEL

In order to avoid the reduction of drying efficiency caused by the accumulation of materials during feeding, the application provides a boiling fluidized bed.

The boiling fluidized bed provided by the application adopts the following technical scheme:

the utility model provides a fluidized bed boils, includes the bed body and hot air device, the bed body is equipped with the inner chamber, and the middle part of bed body inner chamber is equipped with the sieve, the outer wall of the bed body is equipped with carries vibrating motor, and the bed body is equipped with feed inlet and discharge gate respectively along material direction of delivery's both ends, hot air device is used for supplying hot-blastly to the inner chamber of the bed body, and hot air device sets up in one side of the bed body, the top of the bed body is equipped with the air outlet, the top of feed inlet is equipped with inside hollow feed bin, the bottom of feed bin inner wall is equipped with.

Through adopting above-mentioned technical scheme, the material is at feeding vibrating motor's vibration whereabouts to the feed inlet, is cut apart when refining the screen cloth and refines, and the material after refining is difficult for taking place to pile up after getting into the feed inlet, can realize smooth and easy pay-off to can guarantee drying operation's efficiency.

Optionally, the bin and the feed inlet are connected through a connecting flange and a screw connector, and the refining screen is clamped and fixed through the connecting flange of the bin and the feed inlet.

Through adopting above-mentioned technical scheme, flange mutually supports, not only can improve the sealed effect between the bed of material and the feed inlet, can also realize refining the firm installation of screen cloth to in order to guarantee to refine the segmentation effect of screen cloth to the material.

Optionally, the bottom of the bed body is provided with a first chamber and a second chamber which are separated from each other in sequence along the material conveying direction, the hot air device comprises a first fan and a first heat exchanger which are communicated with the first chamber and a second fan and a second heat exchanger which are communicated with the second chamber, the first heat exchanger is arranged between the first fan and the first chamber through a ventilation pipe, and the second heat exchanger is arranged between the second fan and the second chamber through the ventilation pipe.

Through adopting above-mentioned technical scheme, operating personnel can adjust the pump amount of wind and the heating temperature of first heat exchanger and second heat exchanger of first fan and second fan according to actual conditions for the heat-seal volume of first cavity is less than the hot-blast volume of second cavity, thereby makes the pressure of bed body inside present the gradient, in order to guarantee the smooth and easy flow of material.

Optionally, a third chamber is further arranged at one end, away from the first chamber, of the bed body along the second chamber, the third chamber and the second chamber are separated from each other, a third fan is arranged outside the third chamber, and the third fan is connected with the third chamber through a ventilation pipe.

By adopting the technical scheme, the materials dried by the first chamber and the second chamber are cooled by cold air when passing through the upper part of the third chamber, and then are discharged from the discharge hole, so that the subsequent packaging operation and other steps are facilitated.

Optionally, the first fan, the second fan and the third fan are all provided with an air filter at the end far away from the bed body.

Through adopting above-mentioned technical scheme, empty filter can filter the air of fan pump income to avoid the dirt impurity in the air to get into the internal contaminated material of bed.

Optionally, the equipartition has the via hole on the sieve, the via hole sets up along the direction of delivery slope of material, and the one end that the via hole is close to the feed inlet is the low side, and the one end that the via hole is close to the discharge gate is high-end.

Through adopting above-mentioned technical scheme, the smooth and easy flow when material from the feed inlet to the discharge gate had both been guaranteed to the via hole of slope to material leakage volume when can also reducing to park.

Optionally, the sieve plate is provided with a baffle at one end where the first chamber and the second chamber are close to each other and at one end where the second chamber and the third chamber are close to each other, and the baffle is provided with a through hole.

Through adopting above-mentioned technical scheme, the baffle has prolonged the dwell time of material in first cavity and second cavity, has strengthened the drying effect of material, and the reducible material of through-hole is in the residue of baffle department.

Optionally, the top end of the bed body is provided with an observation window.

Through adopting above-mentioned technical scheme, the operating mode that the operator observed according to the observation window, in good time adjusts the pump amount of wind of fan to guarantee best drying effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the materials fall to the feeding hole under the vibration of the feeding vibration motor and are divided and refined when passing through the refining screen, the refined materials are not easy to accumulate after entering the feeding hole, and smooth feeding can be realized, so that the efficiency of drying operation can be ensured;

2. through set up the baffle on the sieve, prolonged the dwell time of material in first cavity and second cavity, strengthened the drying effect of material.

Drawings

FIG. 1 is a structural view of the whole of a boiling fluidized bed in an embodiment of the present application;

FIG. 2 is an exploded view of a boiling fluidized bed according to an embodiment of the present application;

figure 3 is a cross-sectional view of a screen panel in an embodiment of the present application.

Description of reference numerals: 1. a bed body; 11. putting the bed body on the bed; 111. a flange plate; 112. a feed inlet; 113. a discharge port; 114. a storage bin; 1141. a connecting flange; 1142. a screw member; 1143. refining a screen; 115. a feeding vibration motor; 116. an air outlet; 117. an observation window; 12. a lower bed body; 121. a conveying vibration motor; 122. a vibration isolation spring; 123. a fixing plate; 124. a first chamber; 125. a second chamber; 126. a third chamber; 127. an air inlet; 2. a hot air device; 21. a first fan; 211. an air filter; 22. a first heat exchanger; 221. a vent pipe; 222. a connecting hose; 23. a second fan; 24. a second heat exchanger; 25. a third fan; 3. a sieve plate; 31. a via hole; 32. a baffle plate; 321. and a through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a boiling fluidized bed. Referring to fig. 1, the boiling fluidized bed includes a bed 1 and a hot air device 2. The bed body 1 is used for the operation such as the transmission of material and drying, and hot air device 2 is used for supplying the hot-blast that needs when the drying operation to bed body 1.

Referring to fig. 2, the bed body 1 may be configured in a manner that an upper bed body 11 and a lower bed body 12 are spliced into an integral structure, and the upper bed body 11 and the lower bed body 12 are provided with inner cavities. The upper bed body 11 and the lower bed body 12 are both conical shells, and the cross sections of the upper window body and the lower bed body 12 are rectangular. The large end of the upper bed body 11 and the large end of the lower bed body 12 are both open, and the flange plates 111 are fixedly welded at the large ends of the upper bed body 11 and the lower bed body 12; the small end of the upper bed body 11 and the small end of the lower bed body 12 are both closed. The flanges 111 of the upper bed body 11 and the lower bed body 12 are abutted against each other and are locked and fixed by a connecting member such as a bolt.

The two ends of the upper bed body 11 along the material conveying direction are respectively provided with a feed inlet 112 and a discharge outlet 113. The inlet 112 and the outlet 113 are hollow tubes. One end of the feed port 112 is welded and fixed on the upper bed body 11, and the feed port 112 is communicated with the inner cavity of the upper bed body 11; the opening at the other end of the feed port 112 faces away from the lower bed 12, and the inner wall of the feed port 112 is usually inclined to facilitate feeding of the material and reduce the occurrence of material accumulation. One end of the discharge port 113 is welded and fixed with the upper bed body 11 and is communicated with the inner cavity of the upper bed body 11; the opening at the other end of the discharge port 113 faces the direction close to the lower bed body 12, so as to lead out the dried material.

Referring to fig. 2, a hollow bin 114 is disposed at the top end of the feed port 112, and the bin 114 and the feed port 112 may be welded or fixed by a connection flange 1141 and a screw 1142. The bottom end of the inner wall of the bin 114 is provided with a refining screen 1143, and the refining screen 1143 is clamped and fixed by the bin 114 and the flange 111 of the feed inlet 112. The refining screen 1143 is formed by welding criss-cross steel wires, and the refining screen 1143 serves to divide the wet material into fine blocks or particles. The outer wall of the feeding port 112 is fixedly provided with a feeding vibration motor 115, and the feeding vibration motor 115 is used for accelerating the falling speed of the material in the bin 114.

During feeding, the feeding vibration motor 115 is started firstly, then moist materials are fed into the bin 114, the materials fall towards the feeding hole 112 under the vibration of the feeding vibration motor 115, the materials are segmented and refined when passing through the refining screen 1143, the refined materials are not easy to accumulate after entering the feeding hole 112, smooth feeding can be achieved, and therefore the efficiency of drying operation can be guaranteed.

The middle part of the inner cavity of the bed body 1 is provided with a sieve plate 3, and the sieve plate 3 is clamped and fixed by the flange plates 111 of the upper bed body 11 and the lower bed body 12. After entering from the feeding hole 112, the material falls to the sieve plate 3, and the sieve plate 3 is used for conveying the material to the discharging hole 113 along the direction of the feeding hole 112.

Referring to fig. 2 and 3, through holes 31 are uniformly distributed on the sieve plate 3, the through holes 31 are used for hot air to pass through, and the hot air rolls up the material on the sieve plate 3 and performs drying treatment. The through holes 31 are obliquely arranged along the conveying direction of the materials, that is, one end of each through hole 31 close to the feed port 112 is a low end, and one end of each through hole 31 close to the discharge port 113 is a high end. The inclined through hole 31 not only ensures smooth flow of the material from the feeding hole 112 to the discharging hole 113, but also reduces the material leakage amount during parking.

Referring to fig. 2, the outer wall of the lower bed 12 is provided with a conveying vibration motor 121. The conveying vibration motor 121 is used for accelerating the transmission of the materials, after the materials enter from the feed port 112, the conveying vibration motor 121 drives the bed body 1 to vibrate, and drives the materials to move in the direction from the sieve plate 3 to the discharge port 113 in an accelerated manner. In order to ensure the stability of the bed body 1, the bottom end of the lower bed body 12 is provided with a vibration isolation spring 122, the bottom end of the vibration isolation spring 122 is provided with a fixing plate 123, and the fixing plate 123 is fixed on the ground through a fastener with equal strength of chemical bolts.

The hot air device 2 is used for supplying hot air to the inner cavity of the bed body 1 so as to dry the wet materials on the sieve plate 3. The hot air device 2 is arranged at one side of the bed body 1, and the hot air device 2 is communicated with the lower bed body 12. The lower bed body 12 is provided with a first chamber 124, a second chamber 125 and a third chamber 126 which are separated from each other, and the inner walls of the first chamber 124, the second chamber 125 and the third chamber 126 are all subjected to heat insulation treatment. An air outlet 116 is welded and fixed at the top end of the upper bed body 11, and the air outlet 116 is used for discharging air in the inner cavity.

Referring to fig. 1 and 2, the hot wind device 2 includes a first fan 21, a first heat exchanger 22, a second fan 23, and a second heat exchanger 24. The first fan 21 and the first heat exchanger 22 are communicated with the first chamber 124, and the first heat exchanger 22 is arranged between the first fan 21 and the first chamber 124 through a ventilation pipe 221; the second fan 23 and the second heat exchanger 24 are communicated with the second chamber 125, and the second heat exchanger 24 is disposed between the second fan 23 and the second chamber 125 through a ventilation pipe 221. The first fan 21 and the second fan 23 are used for sucking air and conveying the air to the inner cavity of the bed body 1, the first heat exchanger 22 and the second heat exchanger 24 are used for heating the conveyed air, the air is converted into hot air, and when the hot air passes through the sieve plate 3, the wet materials can be dried.

In the drying process of the material, the wet material passes through the upper parts of the first chamber 124 and the second chamber 125 from the feeding hole 112 in sequence, the moisture contents of the material in the first chamber 124 and the second chamber 125 are slightly different, and an operator can adjust the pumping air quantities of the first fan 21 and the second fan 23 and the heating temperatures of the first heat exchanger 22 and the second heat exchanger 24 according to actual conditions, so that the heat sealing quantity of the first chamber 124 is lower than the hot air quantity of the second chamber 125, and the pressure inside the bed body 1 presents a gradient to ensure the smooth flow of the material.

The third fan 25 is further arranged outside the bed body 1, the third fan 25 is communicated with the third chamber 126 of the bed body 1 through a vent pipe 221, the third fan 25 is used for supplying cold air to the inner chamber of the bed body 1, and the air pumping quantity of the third fan 25 is smaller than that of the second fan 23, so that the requirement of pressure gradient is met. The material dried in the first chamber 124 and the second chamber 125 is cooled by cold air when passing through the upper portion of the third chamber 126, and then discharged from the discharge port 113, thereby facilitating the subsequent steps of packaging operation and the like. After the material is discharged from the discharge port 113, the material can be conveyed through the conveying belt, and certainly, the material can also be transported through equipment such as a material conveying trolley.

Referring to fig. 2 and 3, the screen plate 3 is fixedly welded with the baffle 32 at one end of the first chamber 124 and the second chamber 125 close to each other and one end of the second chamber 125 and the third chamber 126, and when the material is rolled up by hot air and passes through the baffle 32, the material can reach the next chamber only by bypassing the baffle 32, so that the retention time of the material in the first chamber 124 and the second chamber 125 is prolonged, and the drying effect of the material is enhanced. In order to reduce the residue of the material at the baffle 32 and ensure the file to block the material, through holes 321 for the material to pass through are uniformly formed on the baffle 32.

Referring to fig. 1, because the bed body 1 is driven by the conveying vibration motor 121 to vibrate, one end of the ventilation pipe 221 near the lower bed body 12 is in flexible connection with the lower bed body 12, and a connection hose 222 or a compensator can be additionally provided, so that in order to facilitate installation of the connection hose 222 or the compensator, the lower bed body 12 is provided with air inlets 127 in the first chamber 124, the second chamber 125 and the third chamber 126.

An air filter 211 can be additionally arranged at the air inlet end of each fan. The air filter 211 and the air inlet end of each fan are detachably connected, and can be in threaded connection or clamped connection. The air filter 211 can filter the air pumped by the fan to prevent the dust and dirt in the air from entering the bed body 1 to pollute the material.

In order to facilitate observation of the boiling state and the drying condition of the material in the bed body 1, the two sides of the upper bed body 11 are provided with observation windows 117, the observation windows 117 can be transparent plates installed at the openings of the upper bed body 11 through fixing members such as bolts, and during installation, sealing treatment is performed between the observation windows 117 and the upper bed body 11 to prevent leakage of the material. The operator adjusts the pump air volume of the fan in due time according to the working condition observed by the observation window 117, so as to ensure the best drying effect.

The implementation principle of the boiling fluidized bed in the embodiment of the application is as follows: during drying operation, the first fan 21, the second fan 23 and the third fan 25 are all started, the pumping air volume of each fan and the heating temperature of the first heat exchanger 22 and the second heat exchanger 24 are set, then the feeding vibration motor 115 and the conveying vibration motor 121 are started, and then wet materials are fed into the bin 114. The material is refined and cut apart when refining screen 1143 in the feed bin 114, the material is difficult to produce after entering the feed inlet 112 and piles up, can guarantee the smoothness of pay-off, the material gets into the back, move to the direction of the discharge gate 113 along the sieve 3 under the vibration of vibrating motor, when first cavity 124 and second cavity 125, the hot-blast that is discharged by first cavity 124 and second cavity 125 carries out drying process, when the third cavity 126, cool cooling by the cold wind that third cavity 126 discharges is handled, the material is discharged from the discharge gate 113 after dry and cooling, the air after handling is discharged from the air outlet 116. Due to the effect of the pressure gradient in the plate body, the materials can also be guaranteed to move smoothly in the plate body, and the drying efficiency is further improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a boiling fluidized bed, includes the bed body (1) and hot air device (2), the bed body (1) is equipped with the inner chamber, and the middle part of the inner chamber of the bed body (1) is equipped with sieve (3), the outer wall of the bed body (1) is equipped with carries vibrating motor (121), and the bed body (1) is equipped with feed inlet (112) and discharge gate (113) respectively along material direction of delivery's both ends, hot air device (2) are used for supplying hot-blastly to the inner chamber of the bed body (1), and hot air device (2) set up in one side of the bed body (1), the top of the bed body (1) is equipped with air outlet (116): the top of feed inlet (112) is equipped with inside hollow feed bin (114), the bottom of feed bin (114) inner wall is equipped with refines screen cloth (1143), the outer wall of feed inlet (112) is equipped with feeding vibrating motor (115).

2. The boiling fluidized bed of claim 1, wherein: the bin (114) is connected with the feed inlet (112) through a connecting flange (1141) and a screw connector (1142), and the refining screen (1143) is clamped and fixed through the connecting flange (1141) of the bin (114) and the feed inlet (112).

3. The boiling fluidized bed of claim 1, wherein: the hot air device comprises a first fan (21) and a first heat exchanger (22) which are communicated with the first chamber (124), and a second fan (23) and a second heat exchanger (24) which are communicated with the second chamber (125), wherein the first chamber (124) and the second chamber (125) are sequentially separated from each other along the material conveying direction at the bottom end of the bed body (1), the first heat exchanger (22) is arranged between the first fan (21) and the first chamber (124) through a ventilation pipe (221), and the second heat exchanger (24) is arranged between the second fan (23) and the second chamber (125) through the ventilation pipe (221).

4. The boiling fluidized bed of claim 3, wherein: the bed body (1) is further provided with a third chamber (126) along one end of the second chamber (125) far away from the first chamber (124), the third chamber (126) and the second chamber (125) are mutually separated, a third fan (25) is arranged outside the third chamber (126), and the third fan (25) is connected with the third chamber (126) through a ventilation pipe (221).

5. The boiling fluidized bed of claim 4, wherein: and air filters (211) are arranged at one ends, far away from the bed body (1), of the first fan (21), the second fan (23) and the third fan (25).

6. The boiling fluidized bed of claim 1, wherein: the equipartition has via hole (31) on sieve (3), via hole (31) set up along the direction of delivery slope of material, and the one end that via hole (31) are close to feed inlet (112) is the low end, and the one end that via hole (31) are close to discharge gate (113) is the high-end.

7. The boiling fluidized bed of claim 4, wherein: the sieve plate (3) is provided with a baffle (32) at one end where the first chamber (124) and the second chamber (125) are close to each other and one end where the second chamber (125) and the third chamber (126) are close to each other, and the baffle (32) is provided with a through hole (321).

8. The boiling fluidized bed of claim 1, wherein: an observation window (117) is arranged at the top end of the bed body (1).