CN201126301Y

CN201126301Y - Powder drying apparatus

Info

Publication number: CN201126301Y
Application number: CNU2007201880911U
Authority: CN
Inventors: 唐勇军; 唐忠良
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-26
Filing date: 2007-10-26
Publication date: 2008-10-01
Anticipated expiration: 2017-10-26

Abstract

Powder drying equipment is used for baking and drying the bamboo and wood powder. The utility model improves a drying methods of secondary drying and secondary wet-discharging from the method of one-off drying and one-off wet-discharging by adequately using afterheat between the baking chamber and coil tube gap, in order to enhance the drying effect on material; meanwhile, during the secondary drying process, the heat in the baking chamber can be absorbed to reduce the furnace temperature, protect the furnace body and prolong the use life of the furnace. The power drying equipment, comprising a baking barrel (4), a material feeding pipe (19), a material discharging pipe (8), a fan (9), a coil pipe (29) and a wet-discharging barrel (11), the inner chamber of the baking barrel (4) is divided into a combustion chamber (5) and a baking chamber (28) by a inner barrel body (6); the combustion chamber (5) is installed with a lower heat absorbing pipe (14) therein, the upper opening of the lower heat absorbing pipe (14) faces upwardly, while the lower end extends to side wall of the baking barrel (4) to be connected with the material feeding pipe (19), the wall of the material feeding pipe (19) is disposed with a material feeding hopper (18); the baking chamber (28) is disposed with a second coil pipe (30) therein, the second coil pipe (30) is helically winded on outer wall of the inner barrel body (6) with the coil pipe (29) from up to down in parallel, the lower end of the second coil pipe (30) extends to side wall of the baking barrel (4) to be connected with the second material feeding pipe (17).

Description

The powder drying plant

Technical field

The utility model relates to a kind of gas that utilizes and carries the drying plant that powder carries out drying together, specifically, relates to and is used for the dry drying plant of bamboo wood powder baking.

Background technology

Before producing bamboo wood powder carbon rod critical process being arranged is that the bamboo wood powder is dried, Chinese patent CN1734220 discloses a kind of powder drying plant, the bamboo wood powder directly contacts with flame in the existing drying mode in order to solve, and the bamboo wood powder that ignites easily causes the problem of waste and disaster.This patent comprises baking bucket, outer connecting pipe, air blast, storage barrel, form combustion chamber and baking chamber by exterior bowl, inner drum, barrel soleplate, fire door, flue, described baking bucket stands vertically, be provided with the spiral interior pipe of at least one circle of helical form in the described baking chamber, pipe lower end and external powder input pipe are connected in described, the upper end is connected with described outer connecting pipe, material is managed baking in input pipe enters, enter the insulation fort after the baking, enter storage barrel at last, this storage barrel is provided with blast pipe.This patent is owing to isolate flame combustion and bamboo wood powder, and the powder of avoiding igniting causes raw material and stops fire and takes place.Yet only through once toasting and a hydrofuge gas, drying effect is limited for this patent, particularly in the big area of air humidity, because the water content of bamboo wood powder is bigger, uses this patent to finish by primary drying, and heat does not obtain to make full use of yet.

The utility model content

The purpose of this utility model is to provide a kind of powder drying plant, and it is poor to solve the drying plant drying effect that is used for the oven dry of bamboo wood powder at present, the problem that heat utilization ratio is low.

For achieving the above object, the utility model mainly is the drying mode with an existing drying plant first drying and a hydrofuge, is modified into the drying mode of secondary drying and secondary hydrofuge.Concrete technical scheme is as follows:

A kind of powder drying plant, comprise the baking bucket, feed pipe, discharge nozzle, air blast, coil pipe and hydrofuge bucket, the inner chamber of described baking bucket is divided into combustion chamber and baking chamber two parts by inner drum, the top of this combustion chamber is provided with flue, described baking is provided with described coil pipe in the chamber, this coil pipe helical form is spiraled on described inner drum outer wall, the lower end of this coil pipe is stretched out described baking bucket outer wall and is linked to each other with described feed pipe, the upper end is stretched out described baking bucket outer wall and is linked to each other with described discharge nozzle, the other end of described discharge nozzle is connected the arrival end of described air blast, the port of export of air blast is connected through the top of outer connecting pipe with described hydrofuge bucket, the top of this hydrofuge bucket is provided with dehumidification tube, and the lower end is provided with drainage conduit, and the lower part wall of described baking bucket is provided with fire door, this fire door communicates with described combustion chamber, and improvement of the present utility model is:

In the described combustion chamber endothermic tube is installed down, the upper end mouth of pipe of this time endothermic tube makes progress, and the sidewall that described baking bucket is stretched out in the lower end links to each other with described feed pipe, and this feed pipe tube wall is provided with feed hopper; Described baking is provided with second coil pipe in the chamber, this second coil pipe and described coil pipe side-by-side helix shape up and down spiral on described inner drum outer wall, the sidewall that described baking bucket is stretched out in the lower end of this second interior pipe links to each other with second feed pipe, the sidewall that described baking bucket is stretched out in the upper end with all round tube connector link to each other, the other end of described second feed pipe is connected on the described drainage conduit; Described flue is communicated with by last endothermic tube with second feed pipe; Described all round the other end of tube connector be connected the arrival end of second air blast, this second blower export end is connected through the top of the 5th outer connecting pipe with the second hydrofuge bucket; The top of the described second hydrofuge bucket is provided with second dehumidification tube, and the lower end is provided with second drainage conduit; Described dehumidification tube stretches in the described hydrofuge bucket, and described second dehumidification tube stretches in the described second hydrofuge bucket.

The utility model by air blast with in material and the hot-air inspiration coil pipe together, hot-air and material are dry by the coil pipe baking in this coil pipe, then, material enters the hydrofuge bucket, material falls the bottom at this hydrofuge bucket under the effect of gravity, moisture is then discharged through dehumidification tube, has reached the purpose of material and air separation; The material after the process baking for the first time and the hot-air on top, combustion chamber are in second air blast sucks second coil pipe, hot-air and material are dry by the baking of second coil pipe in this second coil pipe, then, material enters the second hydrofuge bucket, material falls the bottom at this second hydrofuge bucket under the effect of gravity, moisture is then discharged through second dehumidification tube, has reached the purpose of material and air separation, finally obtains dry material.

The top in above-mentioned baking chamber is provided with air inlet, and the baking chamber communicates with atmosphere through this air inlet, regulates the temperature of toasting in the chamber by this air inlet.

The bottom in above-mentioned baking chamber is provided with the compensation endothermic tube, one end of this compensation endothermic tube stretches in the baking chamber, the other end links to each other with described second feed pipe, the heat that to bake in the chamber by this compensation endothermic tube sucks in second coil pipe, this compensation endothermic tube is provided with first control valve, the temperature of regulating air in second coil pipe by this first control valve.

Above-mentioned discharge nozzle is near being provided with first thermometer in the pipe of blower inlet end, described all round tube connector be provided with second thermometer near in the pipe of the second blower inlet end, by the temperature in first thermometer and second thermometer monitoring outer connecting pipe; The top wall of baking bucket is provided with the 3rd thermometer, and the 3rd thermometer inserts in the described baking chamber, by the temperature in the 3rd thermometer monitoring baking chamber.

Above-mentioned drainage conduit stretches in the described hydrofuge bucket, and above-mentioned second drainage conduit stretches in the described second hydrofuge bucket, by adjusting the length of drainage conduit in the hydrofuge bucket, can regulate moisture and the powder eddy current center in the hydrofuge bucket, so that better discharge moisture.

Beneficial effect: the utility model will have the drying mode of a drying plant first drying and a hydrofuge now, be modified into the drying mode of secondary drying and secondary hydrofuge, improve the drying effect of material, make full use of the waste heat between baking chamber and the coil pipe space; Simultaneously and since during secondary drying sucking-off the heat in the baking chamber, reduced furnace temperature, protected body of heater, increased the service life of body of heater.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the cutaway view of Fig. 1 along A-A;

Fig. 3 is the cutaway view of Fig. 1 along B-B;

Fig. 4 is the partial enlarged drawing at I place among Fig. 1.

The specific embodiment

Further the utility model is illustrated below in conjunction with drawings and Examples:

As Fig. 1, Fig. 2 and shown in Figure 3, powder drying plant of the present utility model is mainly by a baking bucket 4, two

air blasts

9,24, article two,

coil pipe

29,30 and two

hydrofuge buckets

11,22 form, described baking bucket 4 stands vertically, the compound insulating layer of asbestos 7 of inner surface of the staving of baking bucket 4, the inner chamber of baking bucket 4 is dividing in this inner drum 6 with interior combustion chamber 5 and baking chamber 28 two parts in addition by inner drum 6, the top of combustion chamber 5 is provided with flue 1, second valve 2 is installed on the flue 1, combustion chamber 5 be circumferentially with the burning cavity 32, this burning cavity 32 is positioned at the top of combustion chamber 5, and is fixed on described inner drum 6 inwalls, between burning cavity 32 and the described inner drum 6 fin 33 is installed, the bottom of this combustion chamber 5 circumferentially is equipped with the fire wall 15 by brick one-tenth, and endothermic tube 14 is installed down in the combustion chamber 5, and the upper end mouth of pipe of this time endothermic tube 14 upwards, the sidewall that described baking bucket 4 is stretched out in the lower end links to each other with described feed pipe 19, and these feed pipe 19 tube walls are provided with feed hopper 18; The coil pipe 29 and second coil pipe 30 are installed in the described baking chamber 28, second coil pipe 30 and described coil pipe about in the of 29 the side-by-side helix shape spiral on described inner drum 6 outer walls, the lower end of coil pipe 29 is stretched out described baking bucket 4 and is linked to each other with described feed pipe 19, the upper end is stretched out described baking barrels 4 and is linked to each other with described discharge nozzle 8, the other end of discharge nozzle 8 is connected the arrival end of described air blast 9, discharge nozzle 8 is equipped with first thermometer 36 near on the pipe of air blast 9 arrival ends, insert in the discharge nozzle 8 first thermometer, 36 bottoms, expose outside the pipe on top, the port of export of air blast 9 is connected through the top of outer connecting pipe 10 with described hydrofuge bucket 11, the top of this hydrofuge bucket 11 is provided with dehumidification tube 12, the lower end is provided with drainage conduit 31, this drainage conduit 31 is connected with second feed pipe 17, and the mouth of pipe of second feed pipe 17 stretches in the hydrofuge bucket 11.

The sidewall that described baking bucket 4 is stretched out in the lower end of second coil pipe 30 links to each other with second feed pipe 17, the sidewall that described baking bucket 4 is stretched out in the upper end with all round tube connector 26 link to each other, on described flue 1 wall endothermic tube 3 is installed, other end of endothermic tube 3 is connected on second feed pipe 17 on this; Described all round the other end of tube connector 26 be connected the arrival end of second air blast 24, the all round tube connector 26 be provided with second thermometer 35 near the pipe of second air blast, 24 arrival ends, insert all round in the tube connector 26 second thermometer, 35 bottoms, expose outside the pipe on top, and these second air blast, 24 ports of export are connected with the top of the second hydrofuge bucket 22 through the 5th outer connecting pipe 23; The top of the described second hydrofuge bucket 22 is provided with second dehumidification tube 21, and the lower end is provided with second drainage conduit 25; The bottom in baking chamber 28 is provided with compensation endothermic tube 34, and an end of this compensation endothermic tube 34 stretches in the baking chamber 28, and the other end links to each other with described second feed pipe 17, and this compensation endothermic tube 34 is provided with first control valve 16; The top wall of baking bucket is provided with the 3rd thermometer, and the 3rd thermometer inserts in the described baking chamber 28, by the temperature in the 3rd thermometer monitoring baking chamber 28.

Hydrofuge bucket 11 is identical with second dehumidification tube, 21 roles, all is to make moisture and powder separation.Dehumidification tube stretches in the hydrofuge bucket, the lower end mouth of pipe is higher than the tapering part of hydrofuge bucket bottom a little, drainage conduit stretches in the hydrofuge bucket, powder and moisture are under the effect of air blast, blowing in the hydrofuge bucket at a high speed, because the bottom of hydrofuge bucket is taper, therefore moisture and powder form the eddy current of rotation at a high speed in the hydrofuge bucket, moisture accumulation is at the center of eddy current, therefore, by dehumidification tube moisture is discharged outside the hydrofuge bucket, powder then is deposited on the bottom of hydrofuge bucket, stretch into length in the hydrofuge bucket by regulating drainage conduit, regulate the center of eddy current.

During use fuel in the combustion chamber 5 internal combustion, air blast 9 is to the 11 direction air blast of hydrofuge bucket, simultaneously powder and hot gas are imported in the feed pipe 19 under the effect of wind-force by feed hopper 18 and following endothermic tube 14, by feed pipe 19 powder and hot gas are imported in the coil pipe 29, heat in the combustion chamber 5 sees through burning cavity 32, the heat that burns cavity 32 passes to inner drum 6 by fin 33, by the powder in the hot gas baking coil pipe 29 in inner drum 6 generation high temperature and the coil pipe 29, powder and carry the air of aqueous vapor through discharge nozzle 8, outer connecting pipe 10 enters in the hydrofuge bucket 11, because the flow velocity of gas is very fast, powder is the high-speed screw rotation in hydrofuge bucket 11, moisture rises through dehumidification tube 12 discharges like this, powder then is deposited on the bottom of hydrofuge bucket 11, by regulating the length of drainage conduit 31 in hydrofuge bucket 11, can regulate the center of eddy current, so that better discharge moisture, at this moment, under the effect of second air blast 24, powder and last endothermic tube 3, hot gas in the compensation endothermic tube 34 sucks in second coil pipe 30, powder carries out secondary baking in second coil pipe 30, carrying moist powder then enters in the second hydrofuge bucket 22, powder is the high-speed screw rotation in the second hydrofuge bucket 22, moisture rises through 21 discharges of second dehumidification tube like this, powder then is deposited on the bottom of the second hydrofuge bucket 22, finishes dry run.By the temperature in first thermometer 36 and second thermometer, the 35 monitoring pipes, when temperature is too high, control through first control valve; By the temperature in the 3rd thermometer monitoring baking chamber 28.

Claims

1. powder drying plant, comprise baking bucket (4), feed pipe (19), discharge nozzle (8), air blast (9), coil pipe (29) and hydrofuge bucket (11), the inner chamber of described baking bucket (4) is divided into combustion chamber (5) and baking chamber (28) two parts by inner drum (6), the top of this combustion chamber (5) is provided with flue (1), be provided with described coil pipe (29) in the described baking chamber (28), this coil pipe (29) helical form is spiraled on described inner drum (6) outer wall, the lower end of this coil pipe (29) is stretched out described baking bucket (4) outer wall and is linked to each other with described feed pipe (19), the upper end is stretched out described baking bucket (4) outer wall and is linked to each other with described discharge nozzle (8), the other end of described discharge nozzle (8) is connected the arrival end of described air blast (9), the port of export of air blast (9) is connected through the top of outer connecting pipe (10) with described hydrofuge bucket (11), the top of this hydrofuge bucket (11) is provided with dehumidification tube (12), the lower end is provided with drainage conduit (31), the lower part wall of described baking bucket (4) is provided with fire door (13), this fire door (13) communicates with described combustion chamber (5), it is characterized in that:

Endothermic tube (14) is installed down in the described combustion chamber (5), and the upper end mouth of pipe of this time endothermic tube (14) makes progress, and the sidewall that described baking bucket (4) is stretched out in the lower end links to each other with described feed pipe (19), and this feed pipe (19) tube wall is provided with feed hopper (18); Be provided with second coil pipe (30) in the described baking chamber (28), this second coil pipe (30) and described coil pipe (29) side-by-side helix shape up and down spiral on described inner drum (6) outer wall, the sidewall that described baking bucket (4) is stretched out in the lower end of this second coil pipe (30) links to each other with second feed pipe (17), the sidewall that described baking bucket (4) is stretched out in the upper end with all round tube connector (26) link to each other, the other end of described second feed pipe (17) is connected on the described drainage conduit (31); Described flue (1) is communicated with by last endothermic tube (3) with second feed pipe (17); Described all round the other end of tube connector (26) be connected the arrival end of second air blast (24), this second air blast (24) port of export is connected through the top of the 5th outer connecting pipe (23) with the second hydrofuge bucket (22); The top of the described second hydrofuge bucket (22) is provided with second dehumidification tube (21), and the lower end is provided with second drainage conduit (25); Described dehumidification tube (12) stretches in the described hydrofuge bucket (11), and described second dehumidification tube (21) stretches in the described second hydrofuge bucket (22).

2. powder drying plant according to claim 1 is characterized in that: the top in described baking chamber (28) is provided with air inlet (27), and baking chamber (28) communicates with atmosphere through this air inlet (27).

3. powder drying plant according to claim 1, it is characterized in that: described combustion chamber (5) be circumferentially with the burning cavity (32), this burning cavity (32) is positioned at the top of combustion chamber (5), be provided with fin (33) between burning cavity (32) and the described inner drum (6), the bottom of this combustion chamber (5) is circumferentially with fire wall (15).

4. powder drying plant according to claim 1, it is characterized in that: the bottom in described baking chamber (28) is provided with compensation endothermic tube (34), one end of this compensation endothermic tube (34) stretches in the baking chamber (28), the other end is communicated with described second feed pipe (17), and this compensation endothermic tube (34) is provided with first control valve (16).

5. powder drying plant according to claim 1, it is characterized in that: described discharge nozzle (8) is provided with first thermometer (36) near the pipe of air blast (9) arrival end, described all round tube connector (26) be provided with second thermometer (35) near the pipe of second air blast (24) arrival end.

6. powder drying plant according to claim 1 is characterized in that: described drainage conduit (31) stretches in the described hydrofuge bucket (11), and described second drainage conduit (25) stretches in the described second hydrofuge bucket (22).

7. powder drying plant according to claim 1 is characterized in that: the top wall of described baking bucket (4) is provided with the 3rd thermometer (20), and the 3rd thermometer (20) inserts in the described baking chamber (28).