A centrifugal concentration device for waterborne suspended matter samples

Abstract

The application discloses a centrifugal type concentration device for water suspended matter sample, which comprises a tank body, a spline shaft and a rotating cylinder, the rotating cylinder is arranged in the tank body, a partition plate is arranged in the rotating cylinder, the partition plate divides the internal space of the rotating cylinder into a water inlet chamber and a concentration chamber from top to bottom, an outer sleeve is fixedly arranged in the concentration chamber, the upper end of the outer sleeve is fixedly connected with the partition plate, the lower end of the outer sleeve is fixedly connected with the bottom of the rotating cylinder, a communication hole which is communicated with the outer sleeve is arranged on the partition plate, the spline shaft penetrates through the partition plate and the rotating cylinder and is fixedly connected with the partition plate and the rotating cylinder respectively, the lower end of the spline shaft is rotationally connected with the tank body, a centrifugal concentration assembly is inserted into the outer sleeve, the gap between the bottom of the rotating cylinder and the bottom of the tank body forms a water collecting chamber, and the water outlet of the centrifugal concentration assembly is connected with the water collecting chamber through a water guide pipe. The application has the advantages of simple structure, compactness, unlimited use, convenience in carrying and use, large processing capacity, high processing efficiency, difficulty in blockage and suitability for use in the field.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of suspended matter sample collection, in particular to a centrifugal type concentration device for water suspended matter sample. BACKGROUND

[0002] Water suspended matter refers to solid substances suspended in water, including inorganic and organic substances that are insoluble in water, as well as silt, clay, microorganisms, etc. The content of water suspended matter is one of the indicators for measuring the degree of water pollution. Water suspended matter is the main cause of water turbidity.

[0003] At present, when collecting water suspended matter samples, a sampling bottle is usually used to collect water samples, and then the sampling bottle containing the water sample is transported back to the laboratory for concentration and enrichment. Since the content of suspended matter in the water sample is usually low, a large amount of water sample needs to be collected to obtain a sufficient amount of suspended matter sample, which requires a large number of sampling bottles, thereby increasing the sampling cost and making it very laborious and inconvenient to carry and transport a large number of sampling bottles.

[0004] In addition, a water-suspended matter sampler and a sampling method thereof are disclosed in CN109855909A published on June 7, 2019. The sampler includes a box body, a water inlet device, a water body filtration device, and a water body conventional parameter measuring device. The water body filtration device is located in the box body and is used to filter the sampling water introduced into the box body by the water inlet device and collect the filtered water sample and the suspended matter sample. The water body conventional parameter measuring device is used to measure the conventional parameters of the sampling water introduced into the box body by the water inlet device. The sampler has the following defects: (1) the sampler contains a water body filtration device (including a primary filter screen, a stirring chamber and a stirrer, a filter membrane, a filtration bottle, and a filtration pump), which is bulky, complex in structure, and inconvenient to carry, and is not suitable for use in the field; (2) the use requires a power supply, and has certain requirements for the use conditions; (3) the primary filter screen and the filter membrane are easily clogged during use; and (4) the processing capacity is small and the efficiency is low. SUMMARY

[0005] The present application is to solve the above-mentioned problems of the prior art water-suspended matter sampler, and provides a centrifugal type concentration device for water suspended matter sample, which is simple and compact in structure, not limited in use, convenient to carry and use, has a large processing capacity and high processing efficiency, is not easy to clog, and is suitable for use in the field.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: a kind of water in suspension sample centrifugal type concentration device of the present application, including tank body, spline shaft and rotating cylinder, the rotating cylinder is located in tank body, rotating cylinder is equipped with baffle, the baffle will be the space inside rotating cylinder from top to bottom into water inlet chamber and concentration chamber, the fixed outer sleeve in the concentration chamber, the outer sleeve upper end is fixedly connected with baffle, outer sleeve lower end is fixedly connected with the bottom of rotating cylinder, baffle is equipped with the communication hole being communicated with outer sleeve, the spline shaft passes through baffle and rotating cylinder and is fixedly connected with baffle, rotating cylinder respectively, spline shaft lower end is rotatably connected with tank body, outer sleeve is inserted with centrifugal concentration component, the gap between the bottom of rotating cylinder and the bottom of tank forms water collecting chamber, and the water outlet of centrifugal concentration component is connected with water collecting chamber by water guide pipe.The present application is used to filter, concentrate again to the suspension in water sample in the field, and then collect;After the collected water sample is directly poured into water inlet chamber, it will directly enter the centrifugal concentration component in outer sleeve, rotates spline shaft to make the whole rotating cylinder rotate, and the water sample in centrifugal concentration component will be filtered and concentrated under the action of centrifugal force, and the filtered water is collected and discharged into water collecting chamber through water guide pipe, and the suspension is intercepted in centrifugal concentration component, under the continuous rotation of rotating cylinder, water sample will continuously enter centrifugal concentration component to be filtered and concentrated, and finally the filtered suspension is collected into sampling bottle;In the present application, centrifugation and multiple centrifugal concentration components are filtered and concentrated simultaneously, so that the processing capacity is large and the processing efficiency is high.

[0007] Preferably, the centrifugal concentration component includes a centrifugal cylinder and a filter pipe, the centrifugal cylinder is open at the top and sealed at the bottom, the centrifugal cylinder is inserted into the outer sleeve, the filter pipe is sealed at the upper end and the lower end, and the filter pipe is fixed in the centrifugal cylinder, the water outlet is arranged at the bottom of the filter pipe and connected with the water guide pipe, and the water guide pipe extends into the water collecting chamber after passing through the centrifugal cylinder and the rotating cylinder.The outer wall of the centrifugal cylinder in the present application is in contact with the inner wall of the outer sleeve;In the present application, the centrifugal concentration component includes a centrifugal cylinder and a filter pipe, when the rotating cylinder rotates, the suspension in the centrifugal cylinder is thrown outward to the inner wall of the centrifugal cylinder under the action of centrifugal force and gradually accumulates at the inner wall of the centrifugal cylinder, and the water enters the filter pipe through the filter hole on the filter pipe, the moving direction of the suspension and the water is opposite, so that the suspension is not easy to adhere to the surface of the filter pipe to block the filter pipe, and the filtering and concentrating efficiency is higher.

[0008] Preferably, the centrifugal cylinder is provided with a detachable end cover, and the water guide pipe extends into the water collecting chamber after passing through the end cover and the rotating cylinder.The end cover is removed to facilitate the collection of the suspension sample in the centrifugal cylinder.

[0009] As preferred, the filter pipe and the centrifugal cylinder are fixedly connected through connecting rods, the connecting rods are arranged along the outer circumferential surface of the filter pipe in a circumferential direction, and two ends of the connecting rods are fixedly connected with the filter pipe and the centrifugal cylinder respectively. In the present application, the filter pipe and the centrifugal cylinder are fixedly connected through the connecting rods, the structure is simple, and the connecting rods can also function as handles, facilitating the lifting of the centrifugal cylinder from the outer sleeve.

[0010] As preferred, the spline shaft is sleeved with a shaft sleeve pipe, the shaft sleeve pipe passes through the partition plate and the rotating cylinder and is fixedly connected with the partition plate and the rotating cylinder respectively. The shaft sleeve pipe can protect the spline shaft, and the shaft sleeve pipe is also convenient to disassemble and assemble.

[0011] As preferred, the water-suspended sample centrifugal concentration device further comprises a U-shaped bracket arranged above the tank body, two side arms of the U-shaped bracket are fixedly connected with the tank body, a bearing is arranged on the U-shaped bracket, and the shaft sleeve pipe passes through the bearing and is fixedly connected with the bearing. The U-shaped bracket is used for mounting the bearing, so as to fix the upper part of the bearing sleeve and make the bearing sleeve more stable in mounting and fixing.

[0012] As preferred, an axle seat is arranged in the tank body, the lower end of the spline shaft is fixedly and rotatably connected with the axle seat, and the upper end of the spline shaft is exposed outside the tank body and fixedly connected with a hand wheel.

[0013] As preferred, a plurality of balls arranged in a ring shape are arranged on the inner wall surface of the tank body, and the balls are in rolling contact with the rotating cylinder. In order to avoid the shaking of the rotating cylinder during rotation and improve the stability of the filter hole, the balls are arranged on the inner wall surface of the tank body. The balls can not only reduce friction, but also make the rotation of the rotating cylinder more labor-saving and quiet, and can resist the rotating cylinder, effectively avoiding the shaking of the rotating cylinder.

[0014] As preferred, a drain pipe is connected to the bottom of the water collecting chamber.

[0015] Therefore, the present application has the following advantages: simple and compact structure, unlimited use, convenient carrying and use, large processing capacity, high processing efficiency, and non-clogging, and is suitable for use in the field. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the front view of the present application.

[0017] Figure 2 is the top view of the present application.

[0018] Figure 3 is the front view of the present application. Figure 2 is the sectional view along the A-A direction.

[0019] Figure 4 is the front view of the present application. Figure 3 is the enlarged view at B in the middle.

[0020] In the diagram: 1. Tank body; 2. Splined shaft; 3. Rotating cylinder; 4. Baffle plate; 5. Inlet chamber; 6. Concentration chamber; 7. Outer sleeve; 8. Water collection chamber; 9. Outlet; 10. Centrifuge cylinder; 11. Filter pipe; 12. Water guide pipe; 13. End cap; 14. Connecting rod; 15. Shaft sleeve; 16. U-shaped bracket; 17. Bearing; 18. Shaft seat; 19. Handwheel; 20. Ball bearing; 21. Drain pipe. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 , Figure 2 , Figure 3 The centrifugal concentration device for suspended solids samples in water shown includes a tank 1, a splined shaft 2, a rotating cylinder 3, and a U-shaped support 16. The U-shaped support is located above the tank, and its two arms are fixedly connected to the tank. Bearings 17 are installed on the U-shaped support. The rotating cylinder is located inside the tank, and a plurality of ball bearings 20 arranged in a ring are provided on the inner wall of the tank (e.g., ...). Figure 4 (As shown), the ball bearings roll in contact with the rotating cylinder. A partition 4 is provided inside the rotating cylinder, dividing the internal space into an inlet chamber 5 and a concentration chamber 6 from top to bottom. An outer sleeve 7 is fixed inside the concentration chamber. The upper end of the outer sleeve is fixedly connected to the partition, and the lower end is fixedly connected to the bottom of the rotating cylinder. The partition has a connecting hole that communicates with the outer sleeve. A bushing 15 is fitted around the spline shaft, passing through the partition and the rotating cylinder and being fixedly connected to both. The bushing also passes through a bearing and is fixedly connected to it. A bearing seat 18 is provided inside the tank. The lower end of the spline shaft is fixed to the bearing seat and rotatably connected. The upper end of the spline shaft protrudes outside the tank and is fixed with a handwheel 19. The bottom of the rotating cylinder and the bottom of the tank are connected... The gap between them forms a water collection chamber 8. A drain pipe 21 is connected to the bottom of the water collection chamber. A centrifugal concentration component is inserted inside the outer sleeve. The centrifugal concentration component includes a centrifugal cylinder 10 and a filter tube 11. The top of the centrifugal cylinder is open, and the bottom of the centrifugal cylinder is provided with a detachable end cap 13. The centrifugal cylinder is inserted into the outer sleeve. The upper and lower ends of the filter tube are sealed. The filter tube is fixed inside the centrifugal cylinder. The filter tube and the centrifugal cylinder are fixedly connected by a connecting rod 14. The connecting rod is circumferentially spaced along the outer circumference of the filter tube. The two ends of the connecting rod are fixedly connected to the filter tube and the centrifugal cylinder, respectively. A water outlet 9 is provided at the bottom of the filter tube. A water guide pipe 12 is connected to the water outlet. The water guide pipe passes through the end cap and the rotating cylinder and extends into the water collection chamber.

[0023] The use method of the application is: the collected water sample is directly poured into the water inlet chamber, the hand wheel is rotated to drive the spline shaft and the shaft sleeve pipe to rotate the rotating cylinder, the suspended solids in the centrifugal cylinder are thrown outward to the inner wall of the centrifugal cylinder under the action of centrifugal force and gradually accumulated at the inner wall of the centrifugal cylinder, and the water in the centrifugal cylinder continuously enters the filter pipe through the filter holes on the filter pipe, in the process, the water in the water inlet chamber continuously enters the centrifugal cylinder for concentration and filtration, after the water sample in the water inlet chamber is completely concentrated and filtered, the centrifugal cylinder is lifted from the outer sleeve, the end cover is opened, and the suspended solids accumulated at the inner wall of the centrifugal cylinder are collected into the sampling bottle for fixed preservation.

[0024] The above-described embodiment is only a preferred scheme of the application, and does not limit the application in any form, and other variants and modifications can be made without exceeding the technical scheme recorded in the claims.

Claims

1. A centrifugal concentration device for waterborne suspended matter samples, characterized in that, The device comprises a tank (1), a spline shaft (2) and a rotating cylinder (3), the rotating cylinder is arranged in the tank, a partition plate (4) is arranged in the rotating cylinder, the partition plate divides the space in the rotating cylinder into a water inlet chamber (5) and a concentration chamber (6) from top to bottom, an outer sleeve (7) is fixedly arranged in the concentration chamber, the upper end of the outer sleeve is fixedly connected with the partition plate, the lower end of the outer sleeve is fixedly connected with the bottom of the rotating cylinder, a communication hole is arranged on the partition plate and communicates with the outer sleeve, the spline shaft penetrates through the partition plate and the rotating cylinder and is fixedly connected with the partition plate and the rotating cylinder respectively, the lower end of the spline shaft is rotatably connected with the tank, a centrifugal concentration assembly is inserted into the outer sleeve, a water collecting chamber (8) is formed between the bottom of the rotating cylinder and the bottom of the tank, and the water outlet (9) of the centrifugal concentration assembly is connected with the water collecting chamber through a water guide pipe; the centrifugal concentration assembly comprises a centrifugal cylinder (10) and a filter pipe (11), the centrifugal cylinder is open at the top and sealed at the bottom, the centrifugal cylinder is inserted into the outer sleeve, the upper end and the lower end of the filter pipe are sealed, the filter pipe is fixed in the centrifugal cylinder, the filter pipe and the centrifugal cylinder are fixedly connected through connecting rods (14), the connecting rods are arranged along the outer circumferential surface of the filter pipe in a circumferential direction, the two ends of the connecting rods are fixedly connected with the filter pipe and the centrifugal cylinder respectively, the water outlet is arranged at the bottom of the filter pipe, the water outlet is connected with the water guide pipe (12), the water guide pipe penetrates through the centrifugal cylinder and the rotating cylinder and extends into the water collecting chamber, and a detachable end cover (13) is arranged at the bottom of the centrifugal cylinder, the water guide pipe penetrates through the end cover and the rotating cylinder and extends into the water collecting chamber.

2. The water suspended matter sample centrifugal concentration device according to claim 1, characterized in that, The spline shaft is sleeved with a shaft sleeve pipe (15), the shaft sleeve pipe penetrates through the partition plate and the rotating cylinder and is fixedly connected with the partition plate and the rotating cylinder respectively.

3. A waterborne suspended matter sample centrifugal concentration device according to claim 2, characterized in that, The water-suspended sample centrifugal concentration device further comprises a U-shaped support (16), the U-shaped support is arranged above the tank, the two side arms of the U-shaped support are fixedly connected with the tank, a bearing (17) is arranged on the U-shaped support, and the shaft sleeve pipe penetrates through the bearing and is fixedly connected with the bearing.

4. The water suspended matter sample centrifugal concentration device according to claim 1, characterized in that, An axle seat (18) is arranged in the tank, the lower end of the spline shaft is fixedly and rotatably connected with the axle seat, and the upper end of the spline shaft is exposed outside the tank and is fixedly connected with a hand wheel (19).

5. The water suspended matter sample centrifugal concentration device according to claim 1, wherein, A plurality of balls (20) arranged in a ring shape are arranged on the inner wall surface of the tank, and the balls are in rolling contact with the rotating cylinder.

6. The water suspended matter sample centrifugal concentration device according to claim 1, characterized in that, A drain pipe (21) is connected with the bottom of the water collecting chamber.

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