A kind of pneumatic device for mixing chemical powder
It the utility model is related to pharmaceutical equipment technical field, more particularly to a kind of pneumatic device for mixing chemical powder.
No matter the synthesis of Chinese medicine or Western medicine, the mixing of heterogeneity is all one of important process, in order to ensure synthesis into
Each component is uniformly mixed in product, is usually required for each component powder is made and is mixed.But in powder mixed process,
By stirring, it be easy to cause powder and flies upward.
Utility model content
Based on technical problem existing for background technology, the utility model proposes a kind of pneumatic device for mixing chemical powder.
The utility model proposes a kind of pneumatic device for mixing chemical powder, including wind turbine, feed pipe, mixing tube, storage tank, return air
Pipe, ajutage, air purifier and multiple raw material buckets；
Mixing tube is obliquely installed, its high-end connection storage tank；Storage tank bottom is equipped with outlet valve；The output terminal of wind turbine passes through charging
Pipe connects mixing tube low side, and multiple raw material buckets are installed in above feed pipe, and the bottom of each raw material bucket is respectively equipped with a blanking
Valve, each raw material bucket are connected by baiting valve with feed pipe；
Wind turbine input terminal connects the outlet of air purifier by ajutage, and the import of air purifier is equipped with check valve；
Backwind tube first end connects storage tank and is located at the high-end top of mixing tube, the second end connection ajutage of backwind tube.
Preferably, filtering layer is equipped with storage tank, the high-end of mixing tube is located on filtering layer positioned at filtering layer lower section, backwind tube first end
Preferably, storage tank bottom is recessed, and outlet valve is arranged on storage tank bottom extreme lower position.
Preferably, the angle of inclination of mixing tube is 10 degree to 60 degree.
The utility model proposes a kind of pneumatic device for mixing chemical powder work when, the powder that mixes of band will be respectively charged into material
Bucket, powder blanking velocity in hopper is controlled by blanking valve opening；After wind turbine starts, powder edge in feed pipe is carried by air-flow
Mixing tube and enter storage tank.Powder is in feed pipe and mixing tube as uniformly mixing is completed in air-flow agitation.Since mixing tube inclines
Tiltedly set, powder can be avoided to be deposited in mixing tube.
In the utility model, the air that wind turbine input is used for carrying powder mixing is cleaned by air purifier, so that,
Powder can be avoided to be contaminated；In addition, the air part that ajutage is sent into wind turbine comes from the purification air of air purifier, one
Part comes from storage tank separated air in atmosphere mixture, realizes recycling for purification air, and pass through and circulate profit
With the waste for avoiding residual powder in the directly air caused by output of the air in storage tank is polluted with powder.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of pneumatic device for mixing chemical powder.
With reference to Fig. 1, the utility model proposes a kind of pneumatic device for mixing chemical powder, including wind turbine 1, feed pipe 2, mixing tube
3rd, storage tank 4, backwind tube 5, ajutage 6, air purifier 7 and multiple raw material buckets 8.
Mixing tube 3 is obliquely installed, its high-end connection storage tank 4.4 bottom of storage tank is equipped with outlet valve 9.The output terminal of wind turbine 1 leads to
Cross feed pipe 2 and connect 3 low side of mixing tube, multiple raw material buckets 8 are installed in the top of feed pipe 2, and the bottom of each raw material bucket 8 is set respectively
There is a baiting valve 10, each raw material bucket 8 is connected by baiting valve 10 with feed pipe 2.
In this way, the powder with mixing is respectively charged into raw material bucket 8, powder in raw material bucket 8 is controlled by 10 aperture of baiting valve
Blanking velocity；After wind turbine 1 starts, powder in feed pipe 2 is carried by air-flow and enters storage tank 4 along mixing tube 3.Powder is being fed
As uniformly mixing is completed in air-flow agitation in pipe 2 and mixing tube 3.Since mixing tube 3 is obliquely installed, powder can be avoided in mixing tube
Deposited in 3.After gas powder mixed airflow enters storage tank 4, air pressure reduces, and powder is deposited on storage tank bottom, controllable by outlet valve 9
Mixed-powder exports in storage tank 4, and separated air can be discharged by the top of storage tank 4 in atmosphere mixture.
1 input terminal of wind turbine connects the outlet of air purifier 7 by ajutage 6, and the import of air purifier 7 is equipped with unidirectionally
Valve 11.5 first end of backwind tube connects storage tank 4 and is located at 3 high-end top of mixing tube, the second end connection ajutage 6 of backwind tube 5.
In this way, the air that the input of wind turbine 1 is used for carrying powder mixing is cleaned by air purifier 7, so that, it can avoid
Powder is contaminated；In addition, the air part that ajutage 6 is sent into wind turbine 1 comes from the purification air of air purifier 7, one
Point come from storage tank 4 separated air in atmosphere mixture, realize recycling for purification air, and pass through and circulate profit
With the waste for avoiding residual powder in the directly air caused by output of the air in storage tank 4 is polluted with powder.
Check valve 11 is as a kind of valve of common pressure control, and in present embodiment, the setting of check valve 11, can make
Obtain and pass through the output in the more caused ajutage 6 of air of backwind tube 5 back to ajutage 6 with air purifier 7 in storage tank 4
When side pressure is higher by force, 7 entrance of air purifier is sealed so as to stop air inlet, so that air purifier 7 is not due to check valve 11
Work.Specifically, the pressure only in air purifier 7 of check valve 11 is just opened when being less than ambient pressure so that air purification
Device can obtain outside air and be extracted after purifying by ajutage 6 by wind turbine 1.
Is equipped with filtering layer 12 in present embodiment, in storage tank 4, high-end below filtering layer 12, the backwind tube 5 the of mixing tube 3
One end is located at the top of filtering layer 12.The setting of filtering layer 12, can retain the residual powder in the air for overflowing storage tank 4.In addition, storage tank 4
Bottom is recessed, and outlet valve 9 is arranged on 4 bottom extreme lower position of storage tank.
In present embodiment, the angle of inclination of mixing tube 3 is 10 degree to 60 degree, specific to may be selected 30 degree, to avoid mixing
Powder deposits in pipe 3.
The above, is only the preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model