The mixing equipment of the dry-mixed workshop section of milk powder and method for mixing
Technical field
The present invention relates to production of milk powder equipment and its production technology, and in particular to the mixing equipment of the dry-mixed workshop section of milk powder and mixed
Material method, belongs to Dairy Production technical field.
Background technology
Currently many milk powder producer users are a lot of in terms of powder, powder mixing apparatus selects domestic original mixing to set
Standby, due to old-fashioned dry-mixed machine and technique, to there is many shortcomings, maintenance rate very high, therefore mixed in powder/powder or granular material
During conjunction, mixing efficiency is low, and mixing quality is uneven, and the discharge time is long, and residual quantity is also many.A suitable dry-mixed machine is selected, right
The structure of dry-mixed machine is improved, and using proper, will significantly improve the quality of compound, and will soon be in process of production
Reflect beneficial effect.If the technology from mixing material can be grasped further, Material Cost can be also substantially reduced, so as to improve
Profit
Content of the invention
The invention aims to solving existing dry mixing device to mix uneven, dry mixing process product in mixed process
The dry-mixed grained matte of raw dairy products powder, the uneven problem of nutrient content.
The technical scheme is that:The mixing equipment of the dry-mixed workshop section of milk powder, feeds intake dress including original washing powder tilting device, main powder
Put, micro- charging device, caching system, dry-mixed machine, purpose powder cabin, original washing powder blast system, main powder blast system, mixed powder
Material blast system and conversion equipment, the caching system include that the first original washing powder buffer tank, the second original washing powder buffer tank, the first main powder delay
Deposit tank, the second main powder buffer tank and semi-finished product buffer tank, the output end connection original washing powder blast system of original washing powder tilting device, original washing powder wind
The output end of system is sent to connect the first original washing powder buffer tank and the second original washing powder buffer tank, the output end of main powder charging device connects main powder
The input of blast system, the output end of main powder blast system connect the first main powder buffer tank and the second main powder buffer tank, micro
Element charging device is located at dry-mixed machine upper end, the output end of micro- charging device, the output end of the first original washing powder buffer tank,
The output end of two original washing powder buffer tanks, the output end of the first main powder buffer tank, the output end of the second main powder buffer tank and semi-finished product delay
The output end for depositing tank is all connected with dry-mixed machine foundation, and the output end of dry-mixed machine passes through conversion equipment by mixed powder blast system
Set up with semi-finished product buffer tank and purpose powder cabin and be connected.
Input of the output end of the mixed powder blast system by total output channel connection transfer device, converting means
The output end connection semi-finished product pipeline that puts and finished product pipeline, semi-finished product pipeline are set up with the input of semi-finished product buffer tank and are connected,
Finished product pipeline is set up with the input of purpose powder cabin and is connected, and the conversion equipment includes rotating disk, the first pipeline and second pipe, the
One pipeline and second pipe are fixedly mounted on rotating disk, rotate rotating disk, and the first pipeline is by mixed powder blast system output end
Total output channel is turned on the semi-finished product pipeline for be connected semi-finished product buffer tank, opposite direction rotation rotating disk, and second pipe is by mixed powder
Total output channel of material blast system output end and the finished product pipeline conducting for being connected purpose powder cabin, prevent trace element in finished product
Skewness two becomes substandard products, eliminates artificial removing and likely results in secondary pollution and there is potential safety hazard, while also avoiding
Originally the optimal uniformity has been reached in material, material can be isolated excessive agitation on the contrary, destroys the problem of the uniformity on the contrary.
The original washing powder blast system is identical with the structure of main powder blast system, and original washing powder blast system includes that two capacity are identical
Pressurized tank, mixed powder blast system includes a pressurized tank, and the capacity of the pressurized tank of mixed powder blast system is original washing powder
Two times of two pressure tankage size sums of blast system.
Vavuum pump, vibratory sieve and metal removal device is provided between the original washing powder tilting device and original washing powder blast system.
Vibratory sieve and metal removal device are provided between the main powder tilting device and main powder blast system.
The mixing procedure of the dry-mixed workshop section of powder, comprises the following steps:
Step one, will be filling after sack original washing powder be poured over original washing powder and topple over original washing powder tilting device, by original washing powder blast system
Original washing powder is delivered in the first original washing powder buffer tank and the second original washing powder buffer tank, the transmission of the blast system, the original washing powder wind are sent and be
The flow of system is 5ton/hr;Main powder is sent into main powder charging device, and the first main powder buffer tank is delivered to by main powder blast system
In the second main powder buffer tank, the flow of the main powder blast system is 5ton/hr;Trace element is fed intake dress by trace element
Put and be poured in dry-mixed machine;
Step 2, by the first original washing powder buffer tank, the second original washing powder buffer tank, the first main powder buffer tank and the second main powder buffer tank
Dry-mixed 120s in dry-mixed machine sent into by interior powder, and mixed powder is sent to downstream by mixed powder blast system, institute
The flow for stating mixed powder blast system is 10ton/hr;
Step 3, will be filling described in repeat step one after sack original washing powder be poured over original washing powder tilting device 201, through original washing powder
Original washing powder is delivered in the first original washing powder buffer tank 209 and the second original washing powder buffer tank 210 this by original washing powder blast system 203 after fine processing
One process, and will be done in the original washing powder feeding dry-mixed machine 206 in the first original washing powder buffer tank 209 and the second original washing powder buffer tank 210
Mixed process;
Step 4, sack original washing powder described in repeat step one are poured over original washing powder and topple over original washing powder tilting device, are sent by original washing powder wind
System delivers to original washing powder in the first original washing powder buffer tank and the second original washing powder buffer tank,
Step 4, is sampled detection, when sample is less than or equal to 0.1%, moves rotating disk, make powder to mixed powder
Material is filling by carrying out in pipeline entrance purpose powder cabin, when sample is more than 0.1%, pulls rotating disk, and powder is entered partly to become by pipeline
In product buffer tank, the powder in semi-finished product buffer tank enter in dry-mixed machine carry out secondary dry-mixed.
The original washing powder fine processing process includes vavuum pump transmitting procedure, vibratory sieve filter process and metal removal process.
The main powder fine processing includes vibratory sieve filter process and metal removal process.
The present invention is had the effect that compared with prior art:The maintenance of equipment rate of the present invention is very low, therefore in powder/powder
When body or granular material mix, mixing efficiency is high, and the mixing quality uniformity is high, makes bottom gap be reduced to 3 millimeter, during discharging
Between short, less residue, reduce the cost of material, improve enterprise profit.Per about 10 minutes batch materials process times, add out
Material and the time of charging, can be based on 15 minutes per batch materials process time, then 1 hour can be with 4 batch of material of Continuous maching.Such as select every
The dry-mixed machine of processing capacity double centner is criticized, then can process 400 kilograms per hour.
Description of the drawings
Fig. 1, the overall structure diagram of dry mixing device of the present invention;
The enlarged diagram of part A in Fig. 2, Fig. 1;
Fig. 3, structural representation of the conversion equipment in primary importance;
Fig. 4, structural representation of the conversion equipment in the second place;
Fig. 5, original washing powder blast system structural representation;
Fig. 6, main powder blast system structural representation;
Fig. 7, mixed powder blast system structural representation;
Fig. 8, drying tower, fluid bed and sack original washing powder filling apparatus structural representation;
Fig. 9, mixing procedure flow chart of the present invention.
In figure 101, drying tower, 102, fluid bed, 103, sack original washing powder filling apparatus, 201, original washing powder tilting device, 202,
Vavuum pump, 203, original washing powder blast system, 204, main powder charging device, 205, main powder blast system, 206, dry-mixed machine, 207, mixing
Powder blast system, 208, micro- charging device, the 209, first original washing powder buffer tank 210, the second original washing powder buffer tank, 211, the
One main powder buffer tank, the 212, second main powder buffer tank, 213, semi-finished product buffer tank, 214, rotating disk, the 215, first pipeline, 216,
Two pipelines, 217, purpose powder cabin, a, total output channel, b, finished product pipeline, c, semi-finished product pipeline.
Specific embodiment
The specific embodiment of the present invention is described with reference to the drawings:The mixing equipment of the dry-mixed workshop section of the milk powder of the present invention, including
Original washing powder tilting device 201, main powder charging device 204, micro- charging device 208, caching system, dry-mixed machine 206, purpose powder
Storehouse 217, original washing powder blast system 203, main powder blast system 205, mixed powder blast system 207 and conversion equipment, the caching
System includes the first original washing powder buffer tank 209, the second original washing powder buffer tank 210, the first main powder buffer tank 211, the second main powder buffer tank
212 and semi-finished product buffer tank 213, the output end connection original washing powder blast system 203 of original washing powder tilting device 201, original washing powder blast system
203 output end connects the first original washing powder buffer tank 209 and the second original washing powder buffer tank 210, and the output end of main powder charging device 204 connects
The input of main powder blast system 205 is connect, the output end of main powder blast system 205 connects the first main powder buffer tank 211 and second
Main powder buffer tank 212, micro- charging device 208 are located at 206 upper end of dry-mixed machine, the output of micro- charging device 208
End, the output end of the first original washing powder buffer tank 209, the output end of the second original washing powder buffer tank 210, the first main powder buffer tank 211 defeated
The output end for going out end, the output end of the second main powder buffer tank 212 and semi-finished product buffer tank 213 is all connected with the foundation of dry-mixed machine 206,
The input of the output end connection mixed powder blast system 207 of dry-mixed machine 206, the output end of mixed powder blast system 207
Set up with semi-finished product buffer tank 213 and purpose powder cabin 217 by conversion equipment respectively and be connected.
Input of the output end of the mixed powder blast system 207 by total output channel c connection transfer device, turns
Output end connection semi-finished product pipeline a and finished product pipeline b, the semi-finished product pipeline a of changing device and the input of semi-finished product buffer tank 213
Connection is set up, finished product pipeline b is set up with the input of purpose powder cabin 217 and is connected, and the conversion equipment includes rotating disk 214, first
Pipeline 215 and second pipe 216, the first pipeline 215 and second pipe 216 are fixedly mounted on rotating disk 214, rotate rotating disk 214,
First pipeline 215 by total output channel c of 207 output end of mixed powder blast system and be connected semi-finished product buffer tank 213 half
Finished product pipeline a is turned on, and opposite direction rotates rotating disk 214, and second pipe 216 is total defeated by 207 output end of mixed powder blast system
The finished product pipeline b conducting for going out pipeline c and being connected purpose powder cabin 217.
The original washing powder blast system 203 is identical with the structure of main powder blast system 205, and original washing powder blast system 203 includes two
Individual capacity identical pressurized tank, mixed powder blast system 207 include a pressurized tank, the pressure of mixed powder blast system 207
The capacity of power tank is two times of two pressure tankage size sums of original washing powder blast system 203.
Vavuum pump 202, vibratory sieve is provided between the original washing powder tilting device 201 and original washing powder blast system 203 and metal is picked
Except device.
Vibratory sieve and metal removal device are provided between the main powder tilting device and main powder blast system 205.
Sack original washing powder first carry out filling, filling after sack original washing powder deliver at original washing powder tilting device 201, through vibration be sieved through
Original washing powder blast system 203 is delivered to by vavuum pump 202 after filtration journey and metal removal process, original washing powder blast system 203 includes
Two volumes are the pressurized tank of 500L, and the flow of original washing powder blast system 203 is 5ton/hr, and original washing powder blast system 203 will be processed
The original washing powder that crosses is delivered in the first original washing powder buffer tank 209 and the second original washing powder buffer tank 210, and main powder sends into main powder charging device 204, warp
Cross after vibration is sieved through filtration journey and metal removal process the first main powder buffer tank 211 and the is sent into through main powder blast system 205
Two main powder buffer tanks 212, the first original washing powder buffer tank 209, the second original washing powder buffer tank 210, the first main powder buffer tank 211, second are led
Powder in each tank is sent into dry-mixed by the lower end of the lower end of powder buffer tank 212 and micro- charging device 208 by pipeline
Carry out in machine 206 dry-mixed, repeat will be filling after sack original washing powder be poured over original washing powder tilting device 201, through original washing powder fine processing
Original washing powder is delivered to this process in the first original washing powder buffer tank 209 and the second original washing powder buffer tank 210 by original washing powder blast system 203 afterwards,
And dry blending process will be carried out in the original washing powder feeding dry-mixed machine 206 in the first original washing powder buffer tank 209 and the second original washing powder buffer tank 210;
The first original washing powder buffer tank 209, the second original washing powder buffer tank 210, the 3rd original washing powder buffer tank and the 4th original washing powder caching
The capacity of tank is 1m3, and the lower end of dry-mixed machine 206 connects in mixed powder blast system 207, mixed powder blast system 207
Output end set up with the input of the input of semi-finished product buffer tank 213 and purpose powder cabin 217 by conversion equipment respectively and connect
Connect, the input of the output end of semi-finished product buffer tank 213 connection dry-mixed machine 206, the capacity of the semi-finished product buffer tank 213 is the
Two times of one original washing powder buffer tank, 209 capacity, present embodiment are 2m3, and the flow of mixed powder blast system 207 is 10ton/
hr.
It is 25 DEG C to keep temperature in factory building in production process, and humidity is 45%.
Input of the output end of the mixed powder blast system 207 by total output channel c connection transfer device, turns
Output end connection semi-finished product pipeline a and finished product pipeline b, the semi-finished product pipeline a of changing device and the input of semi-finished product buffer tank 213
Connection is set up, finished product pipeline b is set up with the input of purpose powder cabin 217 and is connected, and the conversion equipment includes rotating disk 214, first
Pipeline 215 and second pipe 216, the first pipeline 215 and second pipe 216 are fixedly mounted on rotating disk 214;
As shown in figure 3, when the uniformity of sample is more than 0.1%, rotating rotating disk 214 and arriving primary importance, the first pipeline 215
Total output channel c of 207 output end of mixed powder blast system is led with the semi-finished product pipeline a for being connected semi-finished product buffer tank 213
Logical;
As shown in figure 4, when the uniformity of sample is less than or equal to 0.1%, opposite direction rotates rotating disk 214 and arrives the second place,
Second pipe 216 is by total output channel c of 207 output end of mixed powder blast system and the production tube for being connected purpose powder cabin 217
Road b is turned on.
In actual production process, cause dry-mixed as compressed air is unstable during adding sack original washing powder second
Cabin door is forced unlatching (compressed air is door switching power) to be made to drop down onto buffer area below batch mixer under material is automatic, so as to reach
Less than mixing time, trace element skewness in finished product.As substandard products.And manually remove and likely result in secondary pollution
There is potential safety hazard, using conversion equipment can most great achievement avoiding the occurrence of not above-mentioned.
Sack original washing powder pouring process is delivered to sack through fluid bed 102 after including to dry material by drying tower 101
Original washing powder filling apparatus 103 carry out filling, and the lower end output end position of drying tower 101 is corresponding with the position of fluid bed 102, through excessively stream
Carry out in original washing powder entrance original washing powder filling apparatus 103 after the change process of bed 102 filling.
Main powder process of passing through tunnel sterilization process before main powder charging device 204 is sent into, after entering main powder charging device 204
Main powder needs to enter the first main powder buffer tank 211 and the second main powder after pulverizer crushing, vibratory sieve filtration and metal removal
In buffer tank 212, carry out dry-mixed.
It is noted that the order for feeding intake when micro- use dry-mixed machine mixes.Big component material, such as corn flour, bean cake powder are usually first thrown
Deng then Zai Tou group sub-material, such as premix.Notice that premix is necessarily fed intake without screw elevator, apply disposable tipping bucket
Formula feeds intake, or uses Manual material feeding, can so avoid the isolation of active ingredient in premix from being lost in, dry-mixed machine start after again by
Criticize and feed intake.Mixing terminates also shut down during blowing, remixes a collection of after going out net material.If restarted after fully loaded, can cause dynamic
Moment is too big and motor damage.
Main shaft is provided with the dry-mixed machine of the present invention, main shaft drives hurricane band to mix material, when dry-mixed machine is in regulation
After time completes stirring mixing, once put, in the shortest time, the uniformity that material can be ensured only;Such as gradually put with side port hurricane band
Only, one is to waste time, and does not reach expected productivity ratio, and two is that material has originally reached the optimal uniformity, and excessive agitation can be made on the contrary
Material is isolated, and destroys the uniformity, so as to lose the meaning of dry-mixed machine.
Gap in dry-mixed machine 206 between hurricane band and housing can be 4 millimeters~10 millimeters, and material can use frictional force
Drive full entry mixing.But as the coefficient of friction of grinding particle size and material is different, the material of various components therefore can be made
The time for participating in mixing is different, causes the inhomogeneities of product.Machining accuracy is improved, makes bottom gap be reduced to 3 millimeter;Main
The adjustable form in position is made between axle and dry-mixed machine housing, often can be adjusted between hurricane band and housing according to wear extent
Gap.
The hurricane band is double helix band, as the pitch of inside spin band should be less than external spiral band, so inside spin band
Pitch should be less than external spiral band, make double helix band push round about material ability consistent, and the width of inside spin band should
More than external spiral band, material can be otherwise made in a direction set.