KR102003024B1 - Adjustment ejector system - Google Patents

Abstract

The present invention relates to an adjustable ejector transfer system capable of airtight maintenance, including: a vent hopper storing and pressurizing a material; a material fixed quantity supply unit connected to the vent hopper and supplying the material to the vent hopper side with a fixed quantity; a material transfer body which is connected to the material fixed quantity supply unit, in which an outlet through which the material is discharged is formed on one end portion, and which forms a transfer path of the material; and an adjustable ejector unit having an ejector nozzle in which operation fluid inducing discharge of the material is sprayed so that adsorptive force in which the material is discharged to the outlet is formed on an adsorptive chamber in the material transfer body and coupled to the material transfer body in an opposite position of the outlet in a position adjustable manner.

Description

Adjustable ejector conveying system with airtightness {ADJUSTMENT EJECTOR SYSTEM}

The present invention relates to an adjustable ejector conveying system capable of maintaining airtightness, and more particularly, a partial replacement or replacement or positioning of ejector nozzles without the need to replace the entire equipment as in the past when a change in the transfer conditions of the working fluid is required. Can be performed simply and simply to improve the convenience of the operation, as well as to improve the process efficiency according to the material transfer, and also to control the ejector adjustable ejector to effectively maintain the airtight to effectively prevent material leakage It's about the system.

Pneumatic Conveyor (Pneumatic Conveyor) is a series of equipment to transfer the material using the air pressure, it is generally composed of a prime mover, a feeder, a conveying line, a separator.

An air transport system is a type of ejector. Originally, an ejector is a type of pump that sends pressured water, steam, air, etc. from a spout to a highway so that the surrounding fluid or material is diverted. At this time, since air is often used, the air transfer system is often called an ejector transfer system.

Ejector conveying system has a lower energy efficiency than mechanical, but can be installed in a difficult space for mechanical installation, it is widely applied to the transportation equipment of powder material.

In the construction of such an ejector delivery system, the prime mover includes a series of devices for compressing air and generating flow, and the feeder includes a series of devices for supplying material. The conveying conduit forms a path through which air is delivered, including pipelines, bends, directional valves and the like. The separator then includes a device that separates the air and the material at the final destination.

On the other hand, the core part of the ejector transport system of such a configuration is the feeder. The feeder consists of a series of devices for feeding the material as described above.

In other words, the feeder of the ejector conveying system includes a vent hopper for storing and pressurizing the material, a material supply for supplying the material, and an ejector unit for discharging the material to the outlet through the suction force of the working fluid. The ejector unit is provided with an ejector nozzle through which a working fluid is injected.

In this configuration, the suction force is formed in the suction chamber by the speed of the working fluid sprayed through the ejector nozzle, that is, the air, and the material may be discharged through the discharge pipe while the material is sucked by the suction force.

In this case, the ejection action of the air injected from the ejector nozzle, the air injection amount, the injection pressure, and the like must be appropriate for the effective material discharge operation to proceed.

However, if this is not the case, that is, when the injection position, air injection amount, injection pressure, etc. of the air injected from the ejector nozzle are not appropriate, the air injected from the ejector nozzle is scattered and cannot be properly directed to the outlet so that the material cannot be effectively transferred. A problem arises.

In addition, when the air injected from the ejector nozzle is scattered, a part of the scattered air exerts a back pressure on the suction chamber, which interferes with the flow of air, that is, the flow of air toward the outlet, thereby preventing the material from being discharged. . Of course, even if air flows under the same conditions, the above problem may occur even when the amount of material introduced is changed or the pressure is not constant.

When such a problem occurs, it is necessary to try to change the transfer condition of the air, that is, the transfer condition of the working fluid, which is difficult to work because it needs to replace or disassemble the entire supply of the equipment.

In addition, in the case of the conventional transport system, due to structural limitations, the pressure of the suction chamber is formed, which causes rapid abrasion of the driving part of the material supply part. It is necessary to develop a technology for an ejector transfer system of a new concept that is not known.

Korean Patent Office Application No. 10-1996-0002490 Korea Patent Office Application No. 10-1996-0023097 Korea Patent Office Application No. 10-2010-0093124 Korean Patent Office Application No. 10-2011-0020530

It is an object of the present invention to improve the convenience of work because it is possible to respond by simply and simply performing partial replacement or replacement or positioning of ejector nozzles without the need to replace the entire equipment as in the past when the transfer conditions of the working fluid need to be changed. In addition, it is possible to improve the process efficiency according to the material transfer, and also to provide an adjustable ejector transfer system capable of maintaining the airtight to effectively prevent the leakage of the material.

In addition, an object of the present invention, the ejector nozzle replacement or position adjustment can be performed even after the installation of the entire equipment to ensure the airtight adjustable ejector transfer system that can optimize the transport efficiency of the equipment during initial operation after installation To provide.

The object is a vent hopper (Vent Hopper) for storing and pressing the material; A material quantitative supply unit connected to the vent hopper and supplying a quantity of material on the vent hopper side by volume; A material transfer body connected to the material quantitative supply part and having a discharge port through which the material is discharged, and forming a transfer path of the material; And an ejector nozzle into which a working fluid for inducing the discharge of the material is injected such that a suction force through which the material is discharged to the discharge port is formed in the suction chamber in the material transfer body, and at the position opposite to the discharge port. It is achieved by an airtight adjustable ejector conveying system, characterized in that it comprises an adjustable ejector unit which is adjustablely coupled to the material conveying body.

The material transfer body may include: a first body part having the suction chamber formed therein and the outlet formed at one end thereof; And a second body portion spaced apart from the first body portion, wherein the adjustable ejector unit may be positionably connected between the first body portion and the second body portion.

The adjustable ejector unit may include a main body portion disposed in the first and second body portions, and disposed at an end portion of the main body portion, the width of which is narrowed toward the front end, and the ejector nozzle is detachably screwed at the end portion. A unit body having a nozzle support portion and an ejector flange provided to protrude radially outwardly of the main body portion, the unit body being capable of position adjustment between the first and second body portions; A plurality of guide bars integrally connected to the first and second flanges and the ejector flanges respectively formed on the first and second body parts and allowing movement of the ejector flanges for adjustment of the adjustable ejector unit; A plurality of fastening members coupled to the plurality of guide bars by positions and removably fastening the guide bars to the first and second flanges and the ejector flange; And an airtight holding part disposed between the first and second body parts and the main body part to maintain the airtightness, and locking the ejector nozzles so that the ejector nozzles are not separated after the ejector nozzle is coupled to the nozzle support of the unit body. The member can be joined.

And a nozzle cleaning unit connected to the material transfer body to clean the ejector nozzle, wherein the nozzle cleaning unit has one end coupled to the second body portion and the other end communicated with a suction chamber in the first body portion. Air hoses coupled; A ball valve coupled to one side of the air hose; And an air injection nozzle coupled to the other side of the air hose and injecting air toward the ejector nozzle in the suction chamber, wherein the material quantitative supply part may include a sealed rotary valve.

According to the present invention, it is possible to easily and simply perform partial replacement or ejector nozzle replacement or position adjustment without the need to replace the whole equipment in the situation where the transfer condition of the working fluid is required, thus improving the convenience of the operation. It can of course improve the process efficiency according to the material transfer, and also has the effect of effectively preventing the leakage of the material.

In addition, according to the present invention, the ejector nozzle can be replaced or adjusted after the field installation of the entire equipment, thereby optimizing the transfer efficiency of the equipment during initial operation after installation.

1 is a side view of the construction of the adjustable ejector transport system according to an embodiment of the present invention.
2 is a plan view of FIG. 1.
3 is a front view of FIG. 1.
4 is an enlarged view illustrating main parts of FIG. 1.
5 is an enlarged view of the material transfer body region of FIG. 4.
6 is a partial exploded cross-sectional view of FIG. 5.
7 and 8 are views illustrating a process of adjusting the adjustable ejector unit.
9 to 11 are views for explaining the assembly or replacement process of the ejector nozzle.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms.

In this specification, this embodiment is provided to make the disclosure of the present invention complete, and to fully convey the scope of the invention to those skilled in the art. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations and well known techniques are not described in detail in order to avoid obscuring the present invention.

Like reference numerals refer to like elements throughout. And the terminology (discussed) used herein is for the purpose of describing the embodiments are not intended to limit the invention.

In the present specification, the singular also includes the plural unless specifically stated in the phrase. In addition, components and acts (acts) referred to as 'includes (or includes)' do not exclude the presence or addition of one or more other components and acts.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

In addition, terms that are defined in a commonly used dictionary are not ideally or excessively interpreted unless they are defined.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a side view of a construction of an adjustable ejector conveying system according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a front view of FIG. 1, FIG. 4 is an enlarged view of a main part of FIG. 4 is an exploded view of the material conveying body region, FIG. 6 is a partially exploded cross-sectional view of FIG. 5, FIGS. 7 and 8 show the process of adjusting the adjustable ejector unit, and FIGS. 9 to 11 show the assembly of the ejector nozzle or It is a figure for demonstrating a replacement process.

Referring to these drawings, the adjustable ejector conveying system according to the present embodiment can be easily adjusted to maintain a stable conveying state by easily adjusting the main operating conditions that determine the performance of the air conveying in the state that is installed on the site as shown in Figs. It is.

In other words, the adjustable ejector conveying system according to the present embodiment can easily and simply perform partial replacement or replacement or positioning of the ejector nozzle 153 without the need to replace the entire facility as in the past when the transfer condition of the working fluid is required to be changed. Because it can be performed by the operation, the convenience of the work can be improved, as well as the process efficiency of the material transfer can be improved, and also to prevent the leakage of the material effectively.

The adjustable ejector conveying system according to the present embodiment, which can provide such an effect, may be mounted on the frame frame 111 as shown in FIGS. 1 to 3. Frame frame 111 may be a facility in a factory. When the frame frame 111 is applied, the plurality of clamps 102 may be constructed in a form of fixing to the material transfer body 130.

The adjustable ejector conveying system according to the present embodiment may include a vent hopper 110, a material metering supply unit 120, a material conveying body 130, an adjustable ejector unit 140, and a nozzle cleaning unit 170. have.

The vent hopper 110 serves to store and pressurize the material. The air inlet 111 is formed outside the vent hopper 110. And the inlet pipe 112 is connected in the vent hopper 110. Material may be supplied through inlet pipe 112. The repair flange 113 is provided outside the vent hopper 110.

The vent hopper 110 enables stable supply of materials by interacting with the material quantitative supply unit 120.

The material quantitative supply unit 120 is connected to the vent hopper 110, and serves to supply the material of the vent hopper 110 side by side in a quantitative manner.

The material quantitative supply unit 120 is a sealed rotary valve (121, Airtight Rotary Valve) is applied. The sealed rotary valve 121 supplies the material quantitatively while minimizing the influence of the suction negative pressure.

Due to the application of the sealed rotary valve 121 it is possible to effectively prevent the leakage of the material.

The material conveying body 130 is a kind of duct pipe connected to the material quantity supply part 120 to form a material conveying path. One end of the material transfer body 130 is formed with a discharge port 133 is discharged. The outlet 133 is a flange type, other pipe may be connected thereto.

The material transfer body 130 includes a first body part 131 in which the suction chamber 137 is formed, and a second body part 132 spaced apart from the first body part 131. An outlet 133 is formed at one end of the first body 131.

On the other hand, as described above, the adjustable ejector conveying system according to the present embodiment is an air-borne conveying equipment, and the change in the feed amount and the speed may occur sensitively even with a slight change in the operating conditions.

Here, the operating conditions mean the pressure and air flow rate of the blower (Blower), the input amount and speed of the material, the pressure state of the input portion, the position of the ejector nozzle 153, the discharge amount, the speed and pressure, and the like. The blower is a device connected to the end side of the second body part 132, and may blow air toward the second body part 132.

In such a system, it is necessary to stabilize the conveying state by adjusting the air flow rate and adjusting the position of the ejector nozzle 153 when it is necessary to adjust the feeding amount and the conveying amount. It had to be reinstalled, which made it difficult.

However, in the present embodiment, since it is possible to respond by simply and simply performing the partial replacement or the position adjustment or replacement of the ejector nozzle 153 without replacing the entire equipment as before, the convenience of the operation can be improved.

In particular, the material conveying body 130 having the suction chamber 137 provided therein as a suction chamber is fixed to the peripheral equipment, so that the position of the ejector nozzle 153 can be adjusted even when adjustment or movement is impossible. Process efficiency due to material transfer can be improved.

In order to provide such an effect, the adjustable ejector unit 140 is applied to the adjustable ejector transport system according to the present embodiment.

The adjustable ejector unit 140 has an ejector nozzle 153 through which a working fluid for inducing the discharge of the material is injected such that the suction force through which the material is discharged to the discharge port 133 is formed in the suction chamber 137 in the material transfer body 130. Nozzle). In this embodiment, the working fluid is applied with air but may be replaced with another fluid.

The adjustable ejector unit 140 is connected to the position adjustable between the first body portion 131 and the second body portion 132, unlike the conventional fixed position. That is, the adjustable ejector unit 140 is movably coupled to the material transfer body 130 at a position opposite the outlet 133.

The adjustable ejector unit 140 includes a unit body 150, a plurality of guide bars 160, and a plurality of fastening members 162.

The unit body 150 is formed in the main body portion 151 disposed in the first and second body portions 131 and 132, and is disposed at an end portion of the main body portion 151 so that the width thereof becomes narrower toward the tip and the ejector nozzle at the end portion thereof. 153 includes a nozzle support 152 detachably screwed, and an ejector flange 154 provided to protrude radially outward of the main body 151.

In order to maintain the confidentiality of the main body 151, the airtight holding part 164 is provided between the first and second body parts 131 and 132 and the main body part 151. The airtight holding part 164 is replaceable and can be replaced with a new one if used for a long time.

The plurality of guide bars 160 are integrally connected to the first and second flanges 134 and 135 and the ejector flange 154 respectively formed on the first and second body parts 131 and 132, respectively, of the adjustable ejector unit 140. It serves to allow movement of the ejector flange 154 for adjustment.

In addition, the plurality of fastening members 162 are coupled to the plurality of guide bars 160 by positions, and detachably fasten the guide bars 160 to the first and second flanges 134 and 135 and the ejector flange 154. Play a role. The fastening member 162 may be a kind of nut.

Thus, in a state where the unit body 150 is movable by releasing a part of the fastening member 162, the unit body 150 is moved to a desired position between the first and second body parts 131 and 132 as shown in FIGS. If the fastening member 162 is tightened again after moving, the position of the ejector nozzle 153 may be easily changed. Therefore, it is possible to easily adjust the main operating conditions that determine the performance of the air transport in the state of completion of installation on the site to maintain a stable transport state.

By changing the position of the ejector nozzle 153 in this way, the injection position and the injection pressure of the air injected from the ejector nozzle 153 can be appropriately adjusted.

In particular, the ejector nozzle 153 can be easily detached from the nozzle support 152 of the unit body 150. As a result of the easy replacement of the ejector nozzle 153, the amount of air injection through the ejector nozzle 153 is also appropriate. Can be adjusted.

For example, by adjusting the ejector nozzle (not shown) having a standard discharge aperture or the ejector nozzle (not shown) larger or smaller than the standard, the outflow speed of the nozzle may be adjusted. On the other hand, if the size of the nozzle is changed, the overall length is changed, in this case, the position of the nozzle needs to be adjusted. In this case, the unit body 150 is movable by releasing a part of the fastening member 162. As described above, if the fastening member 162 is retightened after the unit body 150 is moved between the first and second body parts 131 and 132 to a desired position, the position of the ejector nozzle 153 can be easily changed.

After replacing the ejector nozzle 153, the locking member 155 is coupled to prevent the ejector nozzle 153 from being arbitrarily separated. The locking member 155 is used as a means for preventing the ejector nozzle 153 from being separated after the ejector nozzle 153 is coupled to the nozzle support 152 of the unit body 150.

As a result, the adjustable ejector conveying system according to the present embodiment does not need to replace the entire equipment as before, in a situation in which the transfer condition of the working fluid needs to be changed, for example, to adjust the position or aperture of the exposed part of the ejector nozzle 153. Partial replacement or replacement of the ejector nozzle 153 can be performed by simply and simply performing the operation so that the convenience of the operation can be improved.

On the other hand, the nozzle cleaning unit 170 is further applied to the adjustable ejector transport system according to the present embodiment. The nozzle cleaning unit 170 is connected to the material transfer body 130 to clean the ejector nozzle 153. In particular, the nozzle cleaning unit 170 serves to remove the foreign matter that can be loaded on the upper end of the ejector nozzle 153.

The nozzle cleaning unit 170 may include an air hose 171 having one end coupled to the second body 132 and the other end connected to the suction chamber 137 in the first body 131. , The ball valve 172 coupled to one side of the air hose 171, and the air coupled to the other side of the air hose 171, injecting air toward the ejector nozzle 153 in the suction chamber 137. And a spray nozzle 173. By frequently opening the ball valve 172 and cleaning the ejector nozzle 153 or its surroundings during the transfer of the material, it is possible to prevent the transfer efficiency of the material from dropping.

According to the present embodiment which acts on the basis of the structure as described above, in the situation where the transfer condition of the working fluid needs to be changed, partial replacement or replacement or adjustment of the ejector nozzle 153 is not necessary without having to replace the entire equipment as before. It can be performed simply and simply to improve the convenience of the work can be improved as well as to improve the process efficiency according to the material transfer, it is also possible to effectively prevent the leakage of the material.

In addition, according to the present embodiment, the ejector nozzle may be replaced or adjusted after the field installation of the entire equipment, thereby optimizing the transport efficiency of the equipment during initial operation after the site installation.

As described above, the present invention is not limited to the described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

101: flame frame 110: vent hopper
120: material supply portion 121: sealed rotary valve
130: material transfer body 131: first body portion
132: second body portion 133: outlet
134: first flange 135: second flange
137: suction chamber 140: adjustable ejector unit
150: unit body 151: main body
152: nozzle support 153: ejector nozzle
154: ejector flange 155: locking member
160: guide bar 162: fastening member
164: airtight holder 170: nozzle cleaning unit
171: air hose 172: ball valve
173: nozzle for air injection

Claims (4)

A vent hopper for storing and pressurizing the material, a material quantitative supply part connected to the vent hopper and supplying a quantity of material on the vent hopper side, and a material quantitative supply part, and the material is discharged A material conveying body having an outlet formed at one end thereof to form a conveying path of the material, and a working fluid for inducing the discharge of the material such that a suction force from which the material is discharged to the outlet is formed in the suction chamber in the material conveying body; In the airtight adjustable ejector transport system having an ejector nozzle ejected, the adjustable ejector transport system including an adjustable ejector unit that is adjustablely coupled to the material transport body at a position opposite to the outlet,
The material conveying body includes a first body portion having the suction chamber formed therein and having an outlet at one end thereof, and a second body portion disposed to be spaced apart from the first body portion, wherein the adjustable ejector unit includes: A position adjustable connection between the first body portion and the second body portion,
The adjustable ejector unit includes a main body portion disposed in the first and second body portions, and a nozzle disposed at an end portion of the main body portion, the width of which is narrowed toward the tip, and the ejector nozzle is detachably screwed at the end portion. A support body, and an ejector flange provided to protrude radially outwardly of the main body, the unit body being capable of position adjustment between the first and second body parts, and formed in the first and second body parts, respectively. A plurality of guide bars integrally connected to the first and second flanges and the ejector flange, the guide bars allowing the movement of the ejector flange for adjustment of the adjustable ejector unit, and coupled to each of the plurality of guide bars; A plurality of fastening members for detachably fastening a guide bar to said first and second flanges and said ejector flange, Includes a first group and a second confidentiality is arranged to ensure confidentiality between the body portion and the main body portion,
The locking member is coupled so that the ejector nozzle is not separated after the ejector nozzle is coupled to the nozzle support of the unit body.
And a nozzle cleaning unit connected to the material transfer body to clean the ejector nozzle, wherein the nozzle cleaning unit is coupled to one end of the second body part and the other end of the nozzle cleaning unit to communicate with the suction chamber in the first body part. An air hose, a ball valve coupled to one side of the air hose, and an air injection nozzle coupled to the other side of the air hose and injecting air toward the ejector nozzle in the suction chamber. The material metering supply includes a sealed rotary valve (Airtight Rotary Valve),
The ejector nozzle is formed such that the inner diameter becomes smaller toward the end,
The air jetting nozzle installed in the first body part of the material transfer body is installed to be inclined in an oblique direction in the first body part, so that air injected through the air jetting nozzle is directed toward the ejector nozzle. By supplying in an oblique direction,
And the air injected through the air injection nozzle is discharged by moving in the direction of the discharge port together with the material discharged through the ejector nozzle.
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