CN207779056U - Turbulent eddy flow negative pressure drying machine - Google Patents

Abstract

The utility model discloses a kind of turbulent eddy flow negative pressure drying machines, including engine base, the turbulent section communicated and eddy flow section are fixed on the engine base, the turbulent flow section includes cavity, the cavity bottom end is equipped with hot wind inlet, it is equipped with moist material import above the hot wind inlet, the cavity upper end is equipped with hot-blast outlet, and be equipped with can high-speed rotating cutter for bottom in the cavity；The eddy flow section includes back taper cavity, and the air inlet being connected with the hot-blast outlet is equipped at the top of the back taper cavity, discharge pipe is connected in the back taper cavity.This drying machine drying effect is good, and drying efficiency is high, substantially saves energy consumption, and whole system clean hygiene odorless, solves the problems, such as the drying of difficult dehydrated material.

Description

Turbulent eddy flow negative pressure drying machine

Technical field

The utility model is related to drying equipments, in particular to a kind of turbulent eddy flow negative pressure drying machine.

Background technology

In dry field, moist material is mainly dried by hot whirlwind, when it is difficult the material of dehydration to meet some, Such as：Sludge with thermal sensitivity, containing biological intracellular water is primarily present problems with when being dried with existing drying equipment：1) big In the cell, existing dry technology really could not fundamentally remove these moisture substantially, be extremely difficult to for the moisture storage of amount Drying effect；2) since material has thermal sensitivity, simple to evaporate these moisture in fact by improving dry temperature, this is Perplex the technical barrier of related practitioner always；3) common drying equipment is during dried material, due to internal pressure compared with Greatly, usually have that stink distributes and dust particles are excessive, be not only difficult to reach environmental protection index, and the phenomenon that disturbs residents is serious；4) existing There is dry technology to reduce the last moisture content of material as possible, can allow drying process time long enough, this is also at additional increase The energy consumption and cost of reason.

Utility model content

The purpose of this utility model seeks to provide a kind of turbulent eddy flow negative pressure drying machine, and the drying machine is to difficult dehydrated material Drying effect is good, drying efficiency height, safety and sanitation odorless.

To achieve the above object, the technical solution adopted in the utility model is：A kind of turbulent flow eddy flow negative pressure drying machine, including Engine base is fixed with the turbulent section being connected and eddy flow section on the engine base, and the turbulent flow section includes cavity, and the cavity bottom end is set There is hot wind inlet, moist material import is equipped with above the hot wind inlet, the cavity upper end is equipped with hot-blast outlet, the cavity Interior bottom is equipped with can high-speed rotating cutter；The eddy flow section includes back taper cavity, be equipped at the top of the back taper cavity with it is described The connected air inlet of hot-blast outlet, the back taper cavity is interior to be equipped with discharge pipe.

Further, the moist material import and the cutter rotation round are tangent.

Further, the back taper cavity bottom is equipped with and helps flow structure.

Further, the outlet air bottom of the tube is equipped with infundibulate air inlet, and the infundibulate air inlet is low wide and up narrow formula Hollow structure, the discharge pipe top are equipped with straight-through air outlet.

Further, described to help flow structure include central raised and edge protuberance, and the described central raised and described edge is convex Ring-shaped depression is equipped between rising, it is described central raised positioned at the underface of the infundibulate air inlet.

Further, equipped with multiple rows of baffle array component for enhancing turbulent flow effect in the cavity.

Further, the outlet air length of tube 70~90% stretches into the back taper cavity.

Further, the cavity is cylindrical, and top and bottom are closed.

Further, the back taper cavity is with a narrow upper and lower width cone-shaped, and top and bottom are closed.

Further, the air inlet is spiral case air inlet, the air inlet direction of the air inlet and the back taper cavity Top circumference it is tangent.

Compared with prior art, the utility model has the following advantages：

First, drying effect is good, drying efficiency is high：The utility model is combined using turbulent flow heating with cyclone drying dry Dry mode, can in a short period of time by moisture content be 20~80% moist material moisture content be reduced to 15% or less (50 DEG C~ In the drying atmosphere of -0.01~-0.09 gauge pressure of operating temperature coupled system negative pressure in 80 DEG C of sections, biological cell can be effectively destroyed Wall discharges intracellular water, and the material of high to the thermal sensitivity of moisture content 20~80%, the water containing intracellular, difficult dehydration is in 20 seconds The moisture content of drying to 5%~15%), drying efficiency is very high.Not only drying efficiency is high for the utility model, also has energy consumption The advantages of low and clean hygiene odorless, it is often more important that the utility model is in difficult dehydration to thermal sensitivity, containing intracellular water The dried material calorific value that material obtains after being dried under negative pressure and cryogenic conditions is very high, is high value added product.

Second, the turbulent section of the utility model, in turbulent heating process, strong turbulent flow brings following effect to material Fruit：First, it can continue that strong shock occurs between material and material, between material and cavity, between material and cutter, own Material will complete powdered in this process, particle obtains minimum weight, convenient for material as air-flow moves together；The Two, since Brownian movement is the completely random state in track, so the intergranular collision frequency is then carried compared with direct current or eddy flow It has risen hundreds times or even thousands of times, this process has further deepened the heating degree and powdered degree of material；Third, due to The powdered of material is very abundant, and the area of material heating surface also greatly increases, and it is important that this is that moisture evaporation is further speeded up Reason；4th, since the residence time is very short in Brownian motion process of the material in this stove, compared with the heating of direct current or eddy flow Desiccation rate has been substantially improved, and generally desiccation can be completed at ten seconds or so in a certain amount of material so that whole equipment is done Dry efficiency becomes very high.

Third, the utility model turbulent flow section can form strong turbulent flow, due to turbulent flow carry out very acutely, material is in turbulent flow The turbulent section residence time of eddy flow negative pressure drying machine is extremely short, after this level-one drying process is quick, then advances to disorderly In the eddy flow section for flowing eddy flow negative pressure drying machine, since this level-one swirl path is longer, the material of the desiccation overwhelming majority exists More sufficient drying time can be obtained in the drying of this level-one, material moisture can further decrease.

Fourth, the eddy flow section of the utility model, moist material forms rotation after upper end air inlet tangentially enters back taper cavity Stream mode flows to lower end funnel type air outlet, then is flowed out through discharge pipe, equivalent to increase the stroke of moist material eddy flow, extends Dry time；The flow velocity of material gradually increases through moisture, and water evaporation rate is accelerated, and drying efficiency is effectively increased, And drying time extends, and keeps moist material drying more abundant, drying effect is more obvious.Wherein, flow structure is helped to go out with infundibulate The effect that strong air-flow raises up is collectively formed in air port, and the material for arriving bottom in the future strongly introduces the discharge pipe of top again, Continuously and material is transported away in time.

Fifth, the utility model substantially saves energy consumption, common drying equipment, due to obtain after higher temperature Processing material can be dried, this inherently needs prodigious energy consumption；And the operating temperature holding low temperature of this drying equipment is Drying effect can efficiently be reached, for the treatment temperature compared with common hundreds of easily degrees Celsius, this technical characterstic is by band Carry out great energy-saving effect.

Sixth, safety and sanitation, odorless：For with material frowzy, the utility model device can efficiently control smelly Taste distributes, and also not no dust particle is excessive, completely hygienic environment-protecting.

Seventh, the utility model manufacturing cost is low, easy to operate, easy to maintain.

Description of the drawings

Fig. 1 is a kind of dimensional structure diagram of turbulent eddy flow negative pressure drying machine.

Fig. 2 is the cross-sectional view of Fig. 1.

Fig. 3 is the partial enlargement structural representation of Fig. 2.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings, convenient for more clearly understanding that this practicality is new Type, but they do not constitute the utility model and limit.

Fig. 1, turbulent flow eddy flow negative pressure drying machine shown in Fig. 2, including engine base 1 are fixed with the turbulent section 2 communicated on engine base 1 With eddy flow section 3, turbulent section 2 includes cavity 2.1, and cavity 2.1 is in hollow cylindrical, and top and bottom are closed, on 2.1 inner wall of cavity Portion is equipped with multiple rows of baffle array 2.6 for enhancing turbulent flow, and 2.1 bottom end of cavity is equipped with hot wind inlet 2.2, in hot wind inlet 2.2 Side is equipped with moist material import 2.3, and 2.1 upper end of cavity is equipped with hot-blast outlet 2.4, and bottom is equipped with and is driven by motor in cavity 2.1 Can high-speed rotating cutter 2.5, moist material import 2.3 and 2.5 rotation round of cutter are tangent, cutter direction of rotation and air inlet side To opposite, to form strong opposite cutting and shock.

In said program, in conjunction with shown in Fig. 3, eddy flow section 3 includes back taper cavity 3.1, and back taper cavity 3.1 is with a narrow upper and lower width Cone-shaped, top and bottom are closed, and 3.1 side wall top of back taper cavity is equipped with the air inlet 3.2 being connected with hot-blast outlet 2.4, into Air port 3.2 is spiral case air inlet, and the air inlet direction of air inlet 3.2 and the top circumference of the back taper cavity 3.1 are tangent, air inlet 3.2 is tangent with back taper cavity 3.1；Discharge pipe 3.3 is connected in back taper cavity 3.1,3.3 length 70~90% of discharge pipe stretches into back taper In cavity 3.1,3.3 bottom of discharge pipe is equipped with infundibulate air inlet 3.5, and infundibulate air inlet 3.5 is the hollow knot of low wide and up narrow formula Structure, 3.3 top of discharge pipe are equipped with straight-through air outlet 3.6；3.1 bottom of back taper cavity is equipped with and helps flow structure 3.4, helps flow structure 3.4 Including central raised 3.41 and edge protuberance 3.42, ring-shaped depression is equipped between central raised 3.41 and edge protuberance 3.42 3.43, central raised 3.41 are located at the underface of infundibulate air inlet 3.5.

The operation principle and flow of above-mentioned turbulent flow eddy flow negative pressure drying machine are as follows：

Turbulent eddy flow negative pressure drying machine leading portion is turbulent pulverizing heating active section, and back segment is rotational flow evaporating active section.Whole When the work of turbulent eddy flow negative pressure drying machine, using conveyer by the material (moisture content 20~80%) of processing to be dried from damp mass Material import 2.3 is added in the cavity 2.1 of turbulent section 2, and is fallen into bottom and smashed as smaller by high speed rotating tool 2.5 Object block or particle, until weight be decreased to be easy with air motion state, by discharge pipe 3.3 subsequently connection exhaust fan Negative pressure is provided, therefore can form one inside whole turbulent eddy flow negative pressure drying machine and enter, in 2 inside nothing of turbulent section from lower left It is regular to the right and then to enter eddy flow section 3 upwards, at hot-blast outlet 2.4 and form spiral wind and come infundibulate air inlet downwards 3.5, the complicated air-flow finally discharged along discharge pipe 3.3, wherein hot wind is from 2 bottom of turbulent section into fashionable, with high speed rotation Cutter 2.5 is strong opposite cutting and shock when contacting, and is therefore formed strong turbulent；Bottom heaviness material light enough Grain start to make with this strong turbulent flow high speed Brownian movement (as in Fig. 2 cavity 2.1 in shown in densely covered point), so The shock frequency of material and rotary cutter 2.5, material and inner wall, material and storeroom greatly increases, this state can be in pole Make the complete powdered of material in short time, and fully heated, subsequently enters eddy flow section 3；Due to negative pressure drop low boiling point and acutely The comprehensive function that Brownian movement is hit, powdered and fully heated material, are no longer influenced by thermal sensitivity, while biological cell Wall is also effectively destroyed, and intracellular water is released, and these effects all will be helpful to the moisture steaming that material enters eddy flow section 3 Hair；Then material enters eddy flow section 3, proceeds by the rotational flow evaporating stage, since swirl velocity can be in this back taper cavity 3.1 Gradually more strong, while path accordingly increases, moisture can obtain adequately evaporating very much, material in this stage after the completion of Moisture content can be reduced to 15% or less.

Entire utility model equipment leading portion to material completely refine and heat in violent turbulent flow, the born of the same parents of hardly possible dehydration Interior water is released, this process be exceedingly fast, and the usual several seconds can complete；Back segment is heated to refining in the eddy flow of high speed Material carry out moisture abundant a large amount of evaporation；The material high-efficiency of 20~80% moisture content can finally be dropped within 20 seconds Down to 15% hereinafter, this in this field is ideal drying effect, efficiency is also high.

Claims (10)

1. a kind of turbulent flow eddy flow negative pressure drying machine, including engine base (1), it is characterised in that：It is fixed with and is connected on the engine base (1) Turbulent section (2) and eddy flow section (3), it is described turbulent flow section (2) include cavity (2.1), cavity (2.1) bottom end be equipped with hot wind into Mouth (2.2), hot wind inlet (2.2) top are equipped with moist material import (2.3), and cavity (2.1) upper end is equipped with hot wind It exports (2.4), the interior bottom of the cavity (2.1) is equipped with can high-speed rotating cutter (2.5)；The eddy flow section (3) includes back taper Cavity (3.1), back taper cavity (3.1) top is equipped with the air inlet (3.2) being connected with the hot-blast outlet (2.4), described Discharge pipe (3.3) is equipped in back taper cavity (3.1).

2. turbulent flow eddy flow negative pressure drying machine according to claim 1, it is characterised in that：The moist material import (2.3) It is tangent with the cutter (2.5) rotation round.

3. turbulent flow eddy flow negative pressure drying machine according to claim 1, it is characterised in that：Back taper cavity (3.1) bottom Equipped with helping flow structure (3.4).

4. turbulent flow eddy flow negative pressure drying machine according to claim 3, it is characterised in that：Discharge pipe (3.3) bottom is set It is low wide and up narrow formula hollow structure, the discharge pipe (3.3) to have infundibulate air inlet (3.5), the infundibulate air inlet (3.5) Top is equipped with straight-through air outlet (3.6).

5. turbulent flow eddy flow negative pressure drying machine according to claim 4, it is characterised in that：It is described to help the flow structure (3.4) to include Central raised (3.41) and edge protuberance (3.42), is equipped between central raised (3.41) and the edge protuberance (3.42) Ring-shaped depression (3.43), described central raised (3.41) are located at the underface of the infundibulate air inlet (3.5).

6. turbulent flow eddy flow negative pressure drying machine according to claim 1 or 2 or 3, it is characterised in that：In the cavity (2.1) Equipped with multiple rows of baffle array component (2.6) for enhancing turbulent flow effect.

7. turbulent flow eddy flow negative pressure drying machine according to claim 1 or 2 or 3, it is characterised in that：The discharge pipe (3.3) Length 70~90% stretches into the back taper cavity (3.1).

8. turbulent flow eddy flow negative pressure drying machine according to claim 1 or 2 or 3, it is characterised in that：The cavity (2.1) is in Cylindrical shape, top and bottom are closed.

9. turbulent flow eddy flow negative pressure drying machine according to claim 1 or 2 or 3, it is characterised in that：The back taper cavity (3.1) with a narrow upper and lower width cone-shaped, top and bottom are closed.

10. turbulent flow eddy flow negative pressure drying machine according to claim 1 or 2 or 3, it is characterised in that：The air inlet (3.2) For spiral case air inlet, the air inlet direction of the air inlet (3.2) and the top circumference of the back taper cavity (3.1) are tangent.