Micro-channel extraction device

Abstract

The utility model relates to a microchannel extraction device which comprises a base plate and a base, a liquid storage cavity, a first channel, a second channel and a third channel are arranged on the base plate, a liquid inlet hole is communicated with the liquid storage cavity, a liquid outlet pipe is arranged at a liquid outlet hole, the liquid outlet hole is communicated with the third channel, and a fixing strip, a sliding block and a positioning plate are arranged on the base. The fixing strip is fixedly arranged on the side face of the base, a containing groove is formed in the sliding block, the fixing strip is arranged in the containing groove in the sliding block in a sliding mode, the sliding block and the fixing strip are detachably connected through a first bolt, a fixing rod is arranged between the positioning plate and the sliding block, a through hole is formed in the positioning plate, and a fixing assembly is further arranged on the positioning plate. The fixing assembly comprises a connecting rod, a clamping plate and a spring, one end of the connecting rod penetrates through the positioning plate to enter the through hole, the connecting rod is in sliding connection with the positioning plate, the clamping plate is arranged at the end, located in the through hole, of the connecting rod, and the part, located between the clamping plate and the positioning plate, of the connecting rod is sleeved with the spring.

Description

Technical Field

[0001] The utility model belongs to the technical field of ammoximation reaction, in particular to a microchannel extraction device. Background Art

[0002] Acetaldehyde oxime is an organic compound, mainly used as a solvent, and can also be used in organic synthesis. One of the preparation methods of acetaldehyde oxime is to prepare acetaldehyde oxime by oxime exchange reaction of cyclohexanone oxime and acetaldehyde, and then add toluene to the acetaldehyde oxime reaction solution after alkali neutralization, and separate acetaldehyde oxime and cyclohexanone by vacuum distillation, and then add water to the obtained acetaldehyde oxime toluene mixture to extract acetaldehyde oxime, and obtain acetaldehyde oxime aqueous solution and toluene, and finally remove the water in the acetaldehyde oxime aqueous solution by vacuum distillation to obtain the acetaldehyde oxime product.

[0003] When extracting acetaldehyde oxime, the extraction device can fully mix the mixed liquid with the extractant by setting a microchannel, and the mixed liquid obtained after extraction and separation is discharged into a collection container such as a beaker through a liquid outlet pipe, but since the height between the liquid outlet pipe and the collection container cannot be adjusted, the mixed liquid may splash out of the collection container, which is inconvenient to use. Therefore, there are still shortcomings and deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a microchannel extraction device to solve the above problems.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A microchannel extraction device is provided, comprising a substrate and a base, wherein a liquid storage cavity, a first channel, a second channel and a third channel are arranged on the substrate, wherein two of the first channels are respectively connected to the liquid storage cavity, an end of the first channel away from the liquid storage cavity is connected to the second channel, and the second channel is connected to the third channel, wherein a liquid inlet hole is arranged on the substrate, wherein the liquid inlet hole is connected to the liquid storage cavity, a liquid outlet hole is arranged on the substrate, a liquid outlet pipe is arranged at the liquid outlet hole, and the liquid outlet hole is connected to the third channel, and the base is arranged at the bottom of the substrate, wherein a fixing bar, a slider and a positioning plate are arranged on the base, and wherein the fixing bar is fixedly arranged at the bottom of the substrate. A receiving groove is arranged on the side of the base, and the fixing strip can be slidably arranged in the receiving groove on the slider, and the slider and the fixing strip are detachably connected by a first bolt, and a fixing rod is arranged between the positioning plate and the slider, and a through hole is opened on the positioning plate, and a fixing assembly is also arranged on the positioning plate, and the fixing assembly includes a connecting rod, a clamping plate and a spring, one end of the connecting rod passes through the positioning plate and enters the through hole, and the connecting rod is slidably connected to the positioning plate, and the clamping plate is arranged at one end of the connecting rod located in the through hole, and the spring is sleeved on the part of the connecting rod located between the clamping plate and the positioning plate.

[0007] Furthermore, the first channel and the second channel are linear microchannels, and the third channel includes a plurality of linear channels that are connected end to end and parallel to each other.

[0008] Furthermore, a filter screen is provided at the liquid inlet.

[0009] Furthermore, the number of the fixing components is two groups, and the two groups of the fixing components are symmetrically arranged on the positioning plate.

[0010] Furthermore, the clamping plate is arc-shaped.

[0011] Furthermore, a limiting member is provided at one end of the connecting rod away from the clamping plate.

[0012] Furthermore, the third channel is provided with some interference flow blocks.

[0013] Furthermore, a silicone pad is provided on a side of the clamping plate away from the connecting rod.

[0014] Furthermore, one end of the fixing rod is fixedly connected to the slider, a slideway is provided in the positioning plate, the other end of the fixing rod is located in the slideway, the fixing rod is slidably connected to the slideway, and the fixing rod and the positioning plate are detachably connected via a second bolt.

[0015] By adopting the above technical solution, the beneficial effects of the utility model are:

[0016] The microchannel extraction device provided by the utility model comprises a substrate and a base, wherein a liquid storage chamber, a first channel, a second channel and a third channel are arranged on the substrate, a liquid inlet hole is connected with the liquid storage chamber, a liquid outlet pipe is arranged at the liquid outlet hole, and the liquid outlet hole is connected with the third channel, a fixing bar, a slider and a positioning plate are arranged on the base, the fixing bar is fixedly arranged on the side of the base, a receiving groove is arranged on the slider, the fixing bar can be slidably arranged in the receiving groove on the slider, a fixing component is also arranged on the positioning plate, a collecting container is clamped and fixed between two clamping plates, the position height of the collecting container clamped on the positioning plate is adjusted by adjusting the position between the slider and the fixing bar, and the distance between the liquid outlet pipe and the collecting container is adjusted to avoid splashing of the mixed liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the microchannel extraction device in the utility model.

[0018] Figure 2 for Figure 1 A cross-sectional view of a substrate in the microchannel extraction device shown.

[0019] Figure 3 for Figure 1 A top view of the base in the microchannel extraction device shown.

[0020] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0021] Figure numerals: 10, substrate; 11, liquid storage chamber; 12, first channel; 13, second channel; 14, third channel; 141, spoiler; 15, liquid inlet hole; 151, filter screen; 16, liquid outlet hole; 161, liquid outlet pipe; 20, base; 21, fixing bar; 22, slider; 221, receiving groove; 222, first bolt; 23, positioning plate; 231, through hole; 232, fixing assembly; 2321, connecting rod; 2322, clamping plate; 2323, spring; 2324, limiter; 24, fixing rod; 241, second bolt. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the utility model in a schematic manner, so it only shows the structure related to the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1 As shown, the utility model provides a microchannel extraction device for extracting and separating acetaldehyde oxime. The microchannel extraction device includes a substrate 10 and a base 20.

[0024] like Figure 2 As shown, a liquid storage cavity 11, a first channel 12, a second channel 13 and a third channel 14 are provided on the substrate 10. In this embodiment, the number of the liquid storage cavities 11 is two, the number of the first channels 12 is two, the two first channels 12 are respectively connected to the liquid storage cavity 11, the end of the first channel 12 away from the liquid storage cavity 11 is connected to the second channel 13, the second channel 13 and the two first channels 12 form a "Y"-shaped structure, and the second channel 13 is connected to the third channel 14. The first channel 12 and the second channel 13 are linear microchannels, and the third channel 14 includes a plurality of linear channels that are connected end to end and parallel to each other.

[0025] like Figure 1 and Figure 2 As shown, two liquid inlet holes 15 are provided on the substrate 10, and the two liquid inlet holes 15 are respectively connected to the liquid storage chamber 11. The liquid inlet holes 15 are used to add a solution or an extractant into the liquid storage chamber 11, one of the liquid inlet holes 15 is used to add an acetaldehyde oxime mixed solution into the liquid storage chamber 11, and the other liquid inlet hole 15 is used to add an extractant into the liquid storage chamber 11.

[0026] like Figure 1 and Figure 2 As shown, the substrate 10 is further provided with a liquid outlet hole 16, and a liquid outlet pipe 161 is provided at the liquid outlet hole 16. The liquid outlet hole 16 is connected to the third channel 14. Specifically, the liquid outlet hole 16 is connected to an end of the third channel 14 away from the second channel 13. The acetaldehyde oxime mixed solution and the extractant added into the two liquid storage chambers 11 through the liquid inlet hole 15 enter the second channel 13 through the first channel 12 respectively, and the acetaldehyde oxime mixed solution and the extractant entering the second channel 13 through the two first channels 12 respectively contact and mix together, and then the mixed solution is evenly mixed in the third channel 14, and the acetaldehyde oxime solute enters the extractant. The fully mixed mixed solution is discharged through the liquid outlet hole 16 and the liquid outlet pipe 161.

[0027] like Figure 2 As shown, a filter screen 151 is provided at the liquid inlet 15. The filter screen 151 can filter the solution and the extractant, thereby preventing impurities in the acetaldehyde oxime mixed solution and the extractant from entering the first channel 12, the second channel 13 or the third channel 14, causing blockage of the first channel 12, the second channel 13 or the third channel 14.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, the base 20 is arranged at the bottom of the substrate 10, and a fixing bar 21, a slider 22 and a positioning plate 23 are arranged on the base 20. The fixing bar 21 is fixedly arranged on the side of the base 20, and the fixing bar 21 extends in the vertical direction. The slider 22 is roughly "U"-shaped, and a receiving groove 221 is arranged on the slider 22. The fixing bar 21 can be slidably arranged in the receiving groove 221 on the slider 22, and the slider 22 and the fixing bar 21 are detachably connected by a first bolt 222.

[0029] like Figure 1 , Figure 3 and Figure 4 As shown, a fixing rod 24 is provided between the positioning plate 23 and the slider 22 . There are two fixing rods 24 , which are symmetrically distributed. Both ends of the fixing rod 24 are connected to the slider 22 and the positioning plate 23 , respectively. A through hole 231 is provided on the positioning plate 23, and a fixing component 232 is also provided on the positioning plate 23. There are two groups of the fixing components 232, and the two groups of the fixing components 232 are symmetrically arranged on the positioning plate 23. The fixing component 232 includes a connecting rod 2321, a clamping plate 2322 and a spring 2323. One end of the connecting rod 2321 passes through the positioning plate 23 and enters the through hole 231. The connecting rod 2321 is slidably connected to the positioning plate 23. The clamping plate 2322 is arranged at one end of the connecting rod 2321 located in the through hole 231. The clamping plate 2322 is used to clamp a collection container (not shown) containing a mixed liquid. The clamping plate 2322 is arc-shaped. Through such a configuration, it is convenient to clamp the collection container so that the clamping plate 2322 fits tightly against the collection container.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, a limiting member 2324 is provided at one end of the connecting rod 2321 away from the clamping plate 2322, and the spring 2323 is sleeved on the portion of the connecting rod 2321 between the clamping plate 2322 and the positioning plate 23. The limiting member 2324 can play a limiting role to prevent the connecting rod 2321 from slipping off the positioning plate 23. Specifically, the limiting member 2324 is threadedly connected to the connecting rod 2321 for easy assembly and disassembly.

[0031] When in use, the connecting rod 2321 is pulled to slide along the positioning plate 23, and the spring 2323 is compressed, and the container containing the mixed liquid is placed at the positioning hole of the positioning plate 23. The container containing the mixed liquid is located between the two clamping plates 2322 in the two sets of fixing components 232. After the connecting rod 2321 is loosened, the clamping plate 2322 finally clamps and fixes the container containing the mixed liquid under the action of the elastic force of the spring 2323 itself.

[0032] In some embodiments, such as Figure 2 As shown, the third channel 14 is provided with a spoiler block 141. Specifically, the spoiler block 141 is arranged in the straight channel of the third channel 14, and the spoiler block 141 is arranged on the inner wall of the third channel 14. By setting the spoiler block 141, the flow velocity of the liquid in the third channel 14 can be changed, and the liquid in the third channel 14 is prevented from flowing in a laminar state, which is beneficial to the mixing of the liquid.

[0033] In some embodiments, a silicone pad (not shown) is provided on the side of the clamping plate 2322 away from the connecting rod 2321. The softness of the silicone pad can prevent the clamping plate 2322 from directly contacting the collection container, thereby preventing the collection container from being broken due to accidental bumps when the collection container is clamped by the clamping plate 2322.

[0034] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, one end of the fixing rod 24 is fixedly connected to the slider 22, and a slideway (not shown) is provided in the positioning plate 23, and the other end of the fixing rod 24 is located in the slideway, and the fixing rod 24 is slidably connected to the slideway. The fixing rod 24 can slide along the slideway, so as to adjust the horizontal distance between the outlet of the liquid outlet pipe 161 and the collection container, so that the liquid of the mixed liquid can flow completely into the collection container to avoid spilling. The fixing rod 24 and the positioning plate 23 are detachably connected by a second bolt 241, which is convenient for adjustment.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] The above is based on the ideal embodiment of the utility model. Through the above description, relevant staff can make various changes and modifications without departing from the scope of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A microchannel extraction device, characterized in that: The invention comprises a substrate and a base, wherein a liquid storage cavity, a first channel, a second channel and a third channel are arranged on the substrate, wherein two of the first channels are respectively connected to the liquid storage cavity, an end of the first channel away from the liquid storage cavity is connected to the second channel, and the second channel is connected to the third channel, wherein a liquid inlet hole is arranged on the substrate, wherein the liquid inlet hole is connected to the liquid storage cavity, and a liquid outlet hole is also arranged on the substrate, wherein a liquid outlet pipe is arranged at the liquid outlet hole, and the liquid outlet hole is connected to the third channel, and the base is arranged at the bottom of the substrate, and a fixing strip, a slider and a positioning plate are arranged on the base, and the fixing strip is fixedly arranged on the side of the base , a receiving groove is provided on the slider, the fixing strip can be slidably arranged in the receiving groove on the slider, the slider and the fixing strip are detachably connected by a first bolt, a fixing rod is provided between the positioning plate and the slider, a through hole is provided on the positioning plate, and a fixing assembly is also provided on the positioning plate, the fixing assembly includes a connecting rod, a clamping plate and a spring, one end of the connecting rod passes through the positioning plate and enters the through hole, the connecting rod is slidably connected to the positioning plate, the clamping plate is provided at one end of the connecting rod located in the through hole, and the spring is sleeved on the part of the connecting rod located between the clamping plate and the positioning plate.

2. A microchannel extraction device according to claim 1, characterized in that: The first channel and the second channel are linear microchannels, and the third channel includes a plurality of linear channels that are connected end to end and parallel to each other.

3. A microchannel extraction device according to claim 1, characterized in that: A filter screen is arranged at the liquid inlet.

4. The microchannel extraction device according to claim 1, characterized in that: The number of the fixing components is two groups, and the two groups of the fixing components are symmetrically arranged on the positioning plate.

5. The microchannel extraction device according to claim 1, characterized in that: The clamping plate is arc-shaped.

6. The microchannel extraction device according to claim 1, characterized in that: A limiting member is arranged at one end of the connecting rod away from the clamping plate.

7. The microchannel extraction device according to claim 1, characterized in that: The third channel is provided with some interference flow blocks.

8. The microchannel extraction device according to claim 1, characterized in that: A silicone pad is arranged on one side of the clamping plate away from the connecting rod.

9. The microchannel extraction device according to claim 1, characterized in that: One end of the fixing rod is fixedly connected to the sliding block, a slideway is provided in the positioning plate, the other end of the fixing rod is located in the slideway, the fixing rod is slidably connected to the slideway, and the fixing rod and the positioning plate are detachably connected via a second bolt.

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