CN101912828B - Whirlwind-type separation device for conveying powder particle materials - Google Patents

Abstract

The utility model relates to a cyclone type separation device for conveying powder materials. The present invention is to solve the problem that the existing cyclone separator is only suitable for dust removal with a small amount of powder. For the separation of powder materials with a high amount of dust, the exhaust gas contains too much dust and causes serious pollution to the environment. And the loss of raw materials, multi-stage simple series connection. Due to the multiple feeding pipes, the collection of discharging materials is troublesome, and the equipment is huge and occupies a large area. Main points of the technical solution: It is characterized by: including a frame, several stages of cyclone separators, and a hopper, the first stage cyclone separator is in the middle position, and other stages of cyclone separators are arranged around the first stage cyclone separator, and all stages The cyclone separator is connected in sequence through the exhaust pipe and the inlet pipe to form several stages in series structure. The inlet pipe of the first stage cyclone separator is connected to the incoming material conveying pipeline, and the exhaust pipe of the last stage cyclone separator is used as the exhaust port of the device. The nozzles of the discharge pipes of all cyclones are located in the feed ports of the hoppers.

Description

A cyclone type separation device for powder material conveying

technical field

The invention relates to gas-solid two-phase separation equipment for transporting materials, in particular to a cyclone type separation device for powder material transport.

Background technique

The cyclone separator commonly used at present, its traditional structure is a cylinder, the lower part of which is an inverted cone-shaped material guide section, the lower side of the inverted cone-shaped material guide section is a longitudinal discharge pipe, and the upper center of the cylinder body has an extension tube The longitudinal exhaust pipe of the cavity, and the upper part of the cylinder body has an air inlet pipe arranged tangentially to the inner wall of the cylinder body. When in use, the dust-laden airflow enters the cylinder from the intake pipe at a certain speed for high-speed spiral motion, so that the dust particles in the airflow are subjected to centrifugal force and fly to the inner wall of the cylinder, then slide down along the inner wall and are discharged from the feeding pipe, while the gas Then it swirls upward and is discharged through the central exhaust pipe, so that the dust particles are separated from the gas, and the purpose of gas-solid two-phase separation is achieved.

However, the cyclone separator is generally suitable for removing dust with a small amount of dust in the gas, but it is not effective for the airflow separation of powdery materials with a high dust content, mainly because the discharged gas contains dust. Too much will cause serious pollution to the air inside and outside the working environment, and also cause the loss of raw materials. If it is made into a multi-stage simple series cyclone separator, it will be very troublesome to collect the discharge due to the multiple feeding pipes in different positions, and the equipment will be very large and occupy a large area, so it has hardly been seen so far. To the emergence of multi-stage cyclone separators in simple series. At present, it is generally used for airflow conveying and separation of powder materials with a high dust content, and the mesh separator is mainly used. However, the separation efficiency of the mesh separator is low, and the mesh is easy to be blocked. It needs to be cleaned frequently, which causes great harm to the use. big trouble.

The multi-stage cyclone separation device of the vacuum cleaner disclosed in the Chinese patent application No. 200710019446.9 and the multi-stage cyclone separation device disclosed in the No. 200920141447.5 are technical solutions specially developed for the vacuum cleaner. The structure is very complicated and the cyclone path is very tortuous. It is no longer the traditional structure of the cyclone separator, and it needs to use a mesh filter for separation. The separation efficiency is relatively low, and there is also the problem that the mesh filter must be cleaned frequently, so it is not suitable as a powder with a high dust content. Material air conveying is separated and used.

Chinese patent application No. 200710013931.5 discloses a circulating cyclone classification device for powder particles and its classification method and application. It provides a device for removing fine particles produced by catalysts in the reactor, wherein there are two cyclone dust collectors, one One set in the reactor, its function is not clear, the other is connected behind the particle classifier outside the reactor, after the particle classifier separates the catalyst particles above 15-20μm, the gas discharged from the particle classifier is introduced into the Catalyst particles below 15 μm are removed in the cyclone dust collector. This cyclone classification device is only suitable for removing dust in the gas with a small amount of dust. This device is not a multi-stage series cyclone dust collector structure, and its dust collection is troublesome. .

Contents of the invention

In order to overcome the existence of the existing similar cyclone separators, it is only suitable for removing dust in the gas with a small amount of dust. For the separation of powder materials with a high dust content, the dust in the exhaust gas is Too much will cause serious pollution inside and outside the working environment and the loss of raw materials, and the multi-stage simple series cyclone separator will cause a lot of trouble to collect the discharge due to the multiple feeding pipes in different positions, and the equipment is huge and occupies a large area The purpose of the present invention is to provide an improved cyclone separation device for conveying powder materials, which can overcome the defects of the prior art.

The technical solution adopted by the present invention to solve the technical problem is: a cyclone type separation device for powder material transportation, which is characterized in that it includes a frame, several stages of cyclone separators, a hopper, and the hopper is installed on the frame. Several stages of cyclone separators are installed on the hopper, among which the first stage cyclone separator is in the middle position, and other stages of cyclone separators are arranged around the first stage cyclone separator, which are respectively used as the second stage cyclone separator and the third stage cyclone separator. Cyclone separator..., the exhaust pipe of the first stage cyclone separator is connected to the inlet pipe of the second stage cyclone separator, the exhaust pipe of the second stage cyclone separator is connected to the inlet pipe of the third stage cyclone separator..., Several stages of series structure are formed in sequence. The inlet pipe of the first stage cyclone separator is connected to the incoming material conveying pipe, the exhaust pipe of the last stage cyclone separator is used as the exhaust port of the device, and the outlets of the feeding pipes of all cyclone separators are located at In the feed port of the hopper.

The first-stage cyclone separator of the above-mentioned technical solution is generally composed of one cyclone separator, and each other stage cyclone separator arranged around the first-stage cyclone separator can be composed of one cyclone separator or more than two cyclone separators. The cyclones are connected in parallel, and the cyclone separators connected in parallel are that the exhaust pipe is connected with the exhaust pipe, and the intake pipe is connected with the intake pipe. Under special circumstances, the first-stage cyclone separator can also be composed of two or more cyclone separators connected in parallel. The reason why the primary cyclone separator is composed of more than two cyclone separators connected in parallel is mainly from the consideration of reducing the diameter of the cyclone separator.

The cyclone separator of the above-mentioned technical solution can adopt the traditional structure of the cyclone separator, that is, a cylindrical body, the lower part of which is an inverted conical material guide section, and the lower side of the inverted conical material guide section is a longitudinal discharge pipe, and the cylindrical body There is an exhaust pipe extending longitudinally into the cylinder cavity in the center of the top, and an air inlet pipe arranged tangentially to the inner wall of the cylinder on the upper part of the cylinder body. On this basis, the exhaust pipe can also be made into a deformed exhaust pipe. For example, an equal pressure chamber with an enlarged diameter is set in the exhaust pipe to further improve the separation effect of the cyclone separator. More than two equal pressure chambers.

The cross-sectional shape of the hopper of the above technical solution may be circular, square, polygonal, elliptical or an approximate shape thereof.

The other cyclone separators arranged around the first-stage cyclone separator in the above technical solution may be arranged in a circle, a square circle, a polygonal circle, an ellipse or an approximate circle.

The heights of other cyclone separators arranged around the first-stage cyclone separator in the above technical solution can be respectively determined or their installation heights as required.

The cylinder diameter of the first-stage cyclone separator in the above technical solution may be larger than the cylinder diameters of other stages of cyclone separators.

The openings of the feeding pipes of the other cyclone separators arranged around the first-stage cyclone separator in the above technical solution can be provided with doors that can be automatically opened and closed according to the weight of the powder in the feeding pipe, so as to avoid airflow interference between the cyclone separators. .

The hopper of the above technical solution can have an inverted cone-shaped material guide section, and there is a discharge port on the lower side of the inverted cone-shaped material guide section. A discharge door can be installed on the discharge port. The discharge door can be automatic, semi-automatic or manual. the discharge door.

Beneficial effects of the present invention: since the cyclone type separation device is provided with several stages of cyclone separators and a hopper, the cyclone separators of each stage form several stages in series in sequence, the inlet pipe of the first stage cyclone separator is connected to the incoming material delivery pipeline, and finally The exhaust pipe of the first-stage cyclone separator is used as the exhaust port of the device, so it can overcome the fact that the single-stage cyclone separator is used as a powder material with a high dust content in the airflow transportation and separation. The problem of serious pollution and loss of raw materials inside and outside the working environment makes the cyclone separation device simple in results, high in separation efficiency, without mesh clogging, and easy to use. Conveying and separating operations, and the exhaust gas is very clean, which protects the environment and reduces the waste of raw materials. Since the first-stage cyclone separator is in the middle position, the other-stage cyclone separators are arranged around the first-stage cyclone separator, which are respectively used as the second-stage cyclone separator, the third-stage cyclone separator..., all cyclone separators The mouth of the feeding pipe is located in the feeding port of a hopper, so the cyclone separation device has the advantages of compact structure, small size, small footprint, one hopper discharge, and the discharge collection is very convenient.

The present invention will be further described below in conjunction with drawings and embodiments.

Description of drawings

Fig. 1 is a schematic partial sectional view of an embodiment of the present invention.

FIG. 2 is a schematic top view of FIG. 1 .

Fig. 3 is a schematic top view of another embodiment of the present invention.

In the figure: 1. rack; 2. first-stage cyclone separator; 3. second-stage cyclone separator; 4. third-stage cyclone separator; 5. fourth-stage cyclone separator; 6. fifth-stage cyclone Separator; 7. Sixth stage cyclone separator; 8. Seventh stage cyclone separator; 9. Eighth stage cyclone separator; 10. Ninth stage cyclone separator; 11. Hopper; 12. Exhaust pipe; 13 , intake pipe; 14, exhaust pipe; 15, intake pipe; 16, exhaust pipe; 17, intake pipe; 18, exhaust pipe; 19, intake pipe; 20, exhaust pipe; 21, intake pipe; 22, Exhaust pipe; 23, air intake pipe; 24, exhaust pipe; 25, air intake pipe; 26, exhaust pipe; 27, air intake pipe; 28, air intake pipe; 29, exhaust pipe; 30 and 31, feeding pipe; 32. Inverted cone-shaped material guide section; 33. Discharge port; 34. Discharge door; 35 and 36. Equal pressure chamber; 37. Door; 38. Rack; 39. First-stage cyclone separator; 40. The first stage Secondary cyclone separator; 41, third-stage cyclone separator; 42, fourth-stage cyclone separator; 43, exhaust pipe; 44, intake pipe; 45, exhaust pipe; 46, intake pipe; 47, exhaust 48, intake pipe; 49, intake pipe; 50, exhaust pipe.

Detailed ways

Referring to Fig. 1-Fig. 2, the cyclone separation device for powder material transportation is characterized in that it includes frame 1, nine-stage cyclone separators 2, 3, 4, 5, 6, 7, 8, 9 and 10 , a hopper 11, the hopper 11 is installed on the frame 1, and several stages of cyclone separators 2, 3, 4, 5, 6, 7, 8, 9 and 10 are installed on the hopper 11, wherein the first stage cyclone separator 2 In the middle position, the other stages of cyclone separators 3, 4, 5, 6, 7, 8, 9 and 10 are arranged around the first stage cyclone separator 2, respectively serving as the second stage, the third pole, the third pole The first stage, the fourth stage, the fifth stage, the sixth stage, the seventh stage, the eighth stage and the ninth stage cyclone separator, the exhaust pipe 12 of the first stage cyclone separator 2 is connected to the outlet of the second stage cyclone separator 3 The exhaust pipe 14 of air inlet pipe 13, second stage cyclone separator 3 connects the inlet pipe 15 of third stage cyclone separator 4, the exhaust pipe 16 of third stage cyclone separator 4 connects the fourth stage cyclone separator 5 The exhaust pipe 18 of the inlet pipe 17, the fourth stage cyclone separator 5 connects the inlet pipe 19 of the fifth stage cyclone separator 6, the exhaust pipe 20 of the fifth stage cyclone separator 6 connects the sixth stage cyclone separator 7 The exhaust pipe 22 of the inlet pipe 21, the sixth stage cyclone separator 7 is connected to the inlet pipe 23 of the seventh stage cyclone separator 8, and the exhaust pipe 24 of the seventh stage cyclone separator 8 is connected to the eighth stage cyclone separator 7 The air inlet pipe 25 and the exhaust pipe 26 of the eighth stage cyclone separator 9 are connected to the inlet pipe 27 of the ninth stage cyclone separator 10, forming a nine-stage series structure in turn, and the inlet pipe 28 of the first stage cyclone separator 2 receives the incoming material Delivery pipeline, the exhaust pipe 29 of the ninth stage cyclone separator 10 is used as the device exhaust port, and the feeding pipes 30, 31 of all cyclone separators 2, 3, 4, 5, 6, 7, 8, 9 and 10, etc. The orifices of the tubes are all in the feed inlet of the hopper 11.

In addition, each stage of the nine-stage cyclone separators 2, 3, 4, 5, 6, 7, 8, 9 and 10 is composed of a cyclone separator; the cross-sectional shape of the hopper 11 is circular; Other cyclone separators 3, 4, 5, 6, 7, 8, 9 and 10 arranged in separator 2 are arranged in a circle; the hopper 11 has an inverted conical material guide section 32, and the inverted conical material guide section 32 There is a discharge port 33 on the lower side, and a discharge door 34 is installed on the discharge port 33; the diameter of the cylinder of the first stage cyclone separator 2 is larger than that of other stage cyclone separators 3, 4, 5, 6, 7, 8, 9 and 10 cylinder diameters; exhaust pipes 12, 14, 16, 18, 20, 22, 24, 26 for cyclones 2, 3, 4, 5, 6, 7, 8, 9 and 10 And 28 are respectively provided with the constant pressure chamber 35,36 etc. of enlarged diameter on the inner part of the cylinder body of cyclone separator 2,3,4,5,6,7,8,9 and 10; On the nozzles of the feeding pipes 31 etc. of other cyclone separators 3, 4, 5, 6, 7, 8, 9 and 10 arranged in a row in the cyclone separator 2, all are provided with an automatic feeding method according to the powder weight in the feeding pipe 31 etc. Open and close the door 37 etc. to avoid air flow interference between the cyclones.

With reference to Fig. 3, the cyclone-type separating device that the powder grain material is transported is characterized in that: comprise frame 38, four-stage cyclone separator 39,40,41 and 42, a hopper, hopper is installed in frame 38 bottoms, four-stage Cyclone separators 39, 40, 41 and 42 are installed on the frame 38 top, wherein the first stage cyclone separator 39 is in the middle position, and other stages of cyclone separators 40, 41 and 42 are arranged around the first stage cyclone separator 39 Arrangement, respectively as the second stage, the third pole, the fourth stage cyclone separator, the exhaust pipe 43 of the first stage cyclone separator 39 connects the inlet pipe 44 of the second stage cyclone separator 40, the second stage cyclone separator The exhaust pipe 45 of 40 is connected to the intake pipe 46 of the third-stage cyclone separator 41, and the exhaust pipe 47 of the third-stage cyclone separator 41 is connected to the intake pipe 48 of the fourth-stage cyclone separator 42, forming a four-stage series structure in turn , the inlet pipe 49 of the first stage cyclone separator 39 connects the incoming material delivery pipeline, the exhaust pipe 50 of the fourth stage cyclone separator 42 is used as the device exhaust port, and the blanking of all cyclone separators 39, 40, 41 and 42 The nozzles of the pipes are all in the feed port of the hopper.

In addition, each stage of the second stage, the third pole, and the fourth stage cyclone separator 40, 41 and 42 is composed of two cyclone separators connected in parallel, that is, the exhaust pipes of two cyclone separators connected in parallel It is connected with the exhaust pipe, and the intake pipe is connected with the intake pipe. The role of cyclone separators connected in parallel to form a first-stage cyclone separator is: when the second-stage, third-stage, and fourth-stage cyclone separators require a large separation capacity, two small-diameter cyclone separators are used in parallel to avoid A large-diameter cyclone separator is used, which can achieve a smaller volume and a smaller footprint in the overall layout of the cyclone separation device.

Claims (6)

1. a powder grain material is carried the Cyclonic separating apparatus of usefulness, it is characterized in that: comprise frame, some grades of cyclone separators, a hopper, hopper is installed on the frame, some grades of cyclone separators are installed in above the hopper, the structure of cyclone separator is a cylinder, there is back taper guide section its underpart, back taper guide section downside is vertical tremie pipe, the cylinder center of top has a blast pipe that vertically stretches into its chamber, cylinder top has one to be the air inlet pipe of arranged tangential with the cylinder inwall, wherein first order cyclone separator is in the centre position, other grade whirlwind separator is around first order cyclone separator arranged, respectively as second level cyclone separator, third-stage cyclone separator ... the blast pipe of first order cyclone separator connects the air inlet pipe of second level cyclone separator, the blast pipe of second level cyclone separator connects the air inlet pipe of third-stage cyclone separator ... consist of successively some grades of cascaded structures, the air inlet pipe of first order cyclone separator fetches the material conveying tube road, the blast pipe of afterbody cyclone separator is as the device exhaust port, the tremie pipe mouth of pipe of all cyclone separators all is in the charging aperture of hopper, the cylinder diameter of first order cyclone separator is provided with the even pressure chamber of one or two above enlarged diameter greater than the cylinder diameter of other grade cyclone separator in the described blast pipe.

2. carry the Cyclonic separating apparatus of usefulness by powder grain material claimed in claim 1, it is characterized in that every one-level cyclone separator is made of two above cyclone separator parallel connections, the cyclone separator that is connected in parallel is that blast pipe links to each other with blast pipe, air inlet pipe links to each other with air inlet pipe.

3. carry the Cyclonic separating apparatus of usefulness by claim 1 or 2 described powder grain materials, it is characterized in that the cross sectional shape of described hopper is circle, polygonal or ellipse.

4. carry the Cyclonic separating apparatus of usefulness by claim 1 or 2 described powder grain materials, it is characterized in that described other grade cyclone separator around first order cyclone separator arranged is to be arranged in a circle, polygonal circle or oval circle.

5. carry the Cyclonic separating apparatus of usefulness by claim 1 or 2 described powder grain materials, the tremie pipe mouth of pipe that it is characterized in that described other grade cyclone separator around first order cyclone separator arranged is provided with the door according to powder weight automatic switch in the tremie pipe.

6. carry the Cyclonic separating apparatus of usefulness by claim 1 or 2 described powder grain materials, it is characterized in that described hopper has a back taper guide section, back taper guide section downside has a discharging opening, and discharge door is installed on the discharging opening, and discharge door is automatic, automanual or manual discharge door.

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