JPS5826714A - Conveyor for solid substance - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to a device for conveying particulate solid materials in large-scale industrial processes.

The present invention is suitable for large-scale industrial processes such as coal, oil/l/
or large quantities of solid material are conveyed to different processing vessels and zones within a particular processing plant;
% can be used to handle things that must be measured.

Currently, screw feeders are typically used for conveying and measuring solid materials in large-scale industrial operations.

For example, in oil shale and coal processing, screw feeders are often used for coal? It is specified as a means for introducing all raw materials containing raw materials into the processing equipment. Conventional screw feeder is widely used in industry, but this screw feeder is
Problems often arise from blockage caused by forcing solid materials between the outside of the screw feeder and the ore washing cypress or enclosure in which the screw rotates. As it is pushed in and plugged out, continued rotation of the screw increases the packing of solid material and the pressure until a very plugged plug is formed at the stop position. The screw feeder continues to rotate until the clogged plug or hardened solid material becomes large enough to exceed the drive motor's power or torque capacity Yr ◇For this problem, remove the plug from this typical screw feeder. The only recourse is to disassemble and remove the screw from its enclosure.

In screw-type feeders, to avoid tight blockage, shear bins are inserted into the screw feeder drive system to avoid excessive screw feed conveyor blockage and loading. The screw feeder is designed to shear prior to excessive screw loading to avoid tight blockages or blockages in the screw feeder wash or enclosure. This is done more easily because it can be removed by shearing the bin before excessive torque loads appear on the screw. However, the screw feeder still tends to become clogged and must be cleaned as soon as the shear bin breaks. Continuously compressed while causing premature failure at loads normally encountered 1. Intermittent failure of the screw feeder due to tension (0 blockages) or other system failures
Not only is this a waste of time, but the interruption of the entire plant process due to failure of such a conveying system is extremely expensive; therefore, it is clear that there is a real need for a completely unobstructed solid material conveying and measuring system. 0 In the present invention, the improved device is constructed using solid materials, especially those that block the device.
The present invention is based on a new conveyor device or pump comprising an inlet, an outlet and a pump housing having a passage communicating the inlet with the outlet. The passage is formed by a frictionally driven wall movable relative to the pump housing from the inlet to the outlet, and a wall K opposite to this frictionally driven wall.

Weight of the present invention! A particular feature is that this friction-driven wall has a surface area for contacting and transporting solid substances that is larger than the surface area of the opposing wall. A frictional driving force exerted over the tube exerts a frictional driving force on the solid material introduced through the housing inlet. Therefore, the net frictional driving force is
Another feature of the invention is that the solid material is conveyed in a forward direction towards the outlet, such that the solid material is packed or compressed to a sufficient level in front of or within the passageway, so that the solid material Therefore, a solid substance has the following properties:
is quasi-hydrostatic in character, so that the frictional force seen by the drive wall transports the entire weight of the solid material through the passage, and in addition, Since there is little or no liquid in the passageway, the amount of solid material flowing through the passageway can be measured according to the prior art.

It appears that the device of the present invention is essentially completely non-occlusive.
This is because there is no cutting or flow cutting action of the blades in the screw feeder.
In the present invention, when resistance begins, the frictional force increases by 1 as in a screw feeder system.However, an increase in the frictional force causes an increase in the force applied to move the solid plug through the passageway. This merely increases the driving force imparted to the friction drive wall; of course, in severe cases, the resistance may be large enough to exceed the power or torque capacity of the motor driving the friction drive wall.Other features of the invention In case of resistance, the whole pump device is completely disassembled and the cross-sectional area of the passage is increased, so that the plug of solid material blocking the pump can be easily removed, and the friction-driven wall is Adjust the opposing wall accordingly.

The present invention therefore provides a suitable solid material conveying device that is totally free of blockages, in which the driving wall is similar to conventional screw feeder devices with blades that continuously cut the solid material flow. In addition, the packing of the solid material through one pump will not cause any shock due to product or gases lost during introduction of the coal-containing material into the preheater or still. do not have.

The present invention will be explained in detail below with reference to the drawings.

A preferred pump according to the invention is shown in FIGS.
It is denoted by 'ilO. This bong 710Fi is designed to convey solid materials such as sand, oil shale, coal and other particulate solid materials. Basically, the pump 10 is
Mounted in the housing 14 [drive rotor 1j!
, an inlet 16, an outlet 18 and an opposing adjustable shoe 20t. In operation, the solid material is fed by gravity or other positive pressure means through the inlet 16 into the passage between the friction-driven rotor 121 and the opposed adjustable shoe 20.
will be introduced into the. Friction driven rotor 12 directs the solid material through passage 22 and into outlet 18 and into pump 10.
0 Basically the above-mentioned pump and its operation? Having said that, details of this embodiment will be described below.

Referring to FIG. 6, the aforementioned friction drive rotor 12 is shown with a /1 part 24 and two side walls extending radially outward from this part 24. The inner surface δ0,8B of the side wall 26.28, which includes the outer surface 54Kffl of the 061 part 24, defines a U-shaped passage and provides a friction drive wall, which allows the drive rotor 1m to carry solid material. The nozzle part 24, which contacts the solid material when conveyed through the pump lOi, is further provided with a hole s6 for mounting on a tight shaft of the drive rotor 12i. Preferably, the drive rotor 12 is made of a sturdy material such as iron or steel.
It can be made from a single unitary piece of material or assembled as desired.

Referring to FIGS. 1 and 2, the drive rotor 12 is mounted within the housing 14 at the housing wall 88.
12 drive rotors, including 40 tons, are mounted between walls 88 and 40 for $114.

Shaft 42 is rotatably driven in the direction indicated by arrow 44 by a conventional motor or gasoline engine (not shown). The shaft 42 is mounted within a bearing housing 46 containing bearings 48.50i. Bearing 48.5
0Fi, sealed from the housing 46 by a seal 53) and externally sealed by a seal 64; furthermore, the shaft 42 is supported in a sealed bearing 56 fixedly mounted within the housing 40. 0 drive rotor xg#:t,
It is fixedly mounted on the shaft 42 so that the two only rotate together.

Gap 5 between drive rotor 1g and housing 14Fi, drive rotor side walls 2B, 28 and housing wall 88.40
8.60 is kept to a minimum.

Inlet 16Fi includes walls 62, 68, 64 and 6B.

The walls 62,64 are both connected to the side walls 26,28 of the drive rotor 18.
0 wall 68.65Vi dimensioned to fit between
, preferably at the inlet wall 62 .
64 and the drive rotor wall 16.28 and the inlet wall 68
．． 65 and the drive rotor 12 so that no solid material escapes from the pump 10, at the same time the inlet walls 62.68.
64, 65 and the drive rotor 12 is kept to a minimum so that they do not close together.

The outlet 18 includes walls 66,68, which are determined by the drive rotor Ig and the walls 67,69, as shown in FIG. The U-shaped passageway is sized for a pressure fit. Furthermore, the outlet walls 66,68 are such that both walls carry the solid material to the outlet wall 66, 68.
．． 68 and the drive rotor walls 26, 28, but preferably not wide and round where it hardens against the drive rotor 12. 69 and the periphery of the drive rotor 12 is such that solid material leaks f1. The inlet 16 and outlet 18 should be kept to a minimum so that the
For example, it may be fastened to a bolt or bottle 70. The ports may additionally be used to secure the housing side walls 88, 40 in place; however, any radical means may be used to secure the housing walls 88,400 relative to each other. As shown in FIG. It ends on its inner end adjacent to gO. The passageway 22 is thus somewhat confined to the location of the friction drive rotor 12 and the opposing inner surface 72 of the adjustable shoe 20. An important feature of the invention is that the surface area of the opposing shoe inner surface 72 is 80.82 and the outside of the hub part 24 @8
4, these surface areas are always located in the passage z2 between the inlet 16 and the outlet 18 when the drive rotor Ig rotates. Since the surface area of the opposing shoe wall is larger than the surface area of the opposing shoe wall, the net frictional driving force is expected to transport the particulate solid material throughout the passageway 22. Therefore, due to friction due to fine particulate solid substances)
It is important for transport through 'fr to be packed to different degrees. In particular, if a particulate solid material is not connected to an 8-degree angle, the frictional driving force acting on the particulate that momentarily contacts the friction drive wall will not be transmitted to the majority of the particulate, and therefore the particulate solid material will Little or no frictional drive or conveyance takes place. According to the invention, the particulate solid material is tightly packed in front of or within the passage g2@particulate solid material 1 (lI+ packed, **driving wall 80.8 m, 84
Therefore, the frictional force applied to the opposing shoe surface 78 is
The solid material has quasi-hydrostatic properties such that the entire particulate solid material is distributed within the passageway 2g, and transport of the entire solid material mass takes place.

The amount of compaction required to operate the solids pump 10 according to the present invention depends greatly on the particulate material being transported.For many solids, the force of gravity exerted on the particulate solids at the inlet 16 will The pressure head created by the pressure head produces sufficient packing for the operation of the pump 10; in this type no additional packing is needed; It is.

However, the amount of stuffing obtained in passage g2 can vary. In order to perform such variable packing, the shoe 5o
A pivot shaft 74 mounted within the IPi housing 14 fixes the upper end position of the shoe BO adjacent to the inlet wall 6jl, while driving the lower end of the shoe 20 adjacent to the outlet 968. It rotates inwardly toward the rotor hub portion so as to be limited by the pin 75 and the groove 7γ. 1st
In the figures and FIG.
2 is shown as the most retracted position forming a continuous arc between the inlet 96B and the outlet wall 68. In Figures 8 and 4, Shoo! O is denoted as the most inserted position where the cross-sectional area of the passageway N12 decreases to the maximum 0 thus a passageway with a decreasing cross-sectional area from the inlet end to the outlet end!
lf: can be provided and cause packing of the particulate solid material as it passes through the passage.
If sufficient packing of particulate solid material is available to provide adequate conveyance of particulate solid material at this position, the shoe 20 remains in its most retracted position. Make it. However, the packing of fine particulate solid material within the normal passage 2g is such that a sufficient frictional force t4 is generated to send the fine particulate solid material through the outlet 18'fr.
It is necessary to achieve this goal. Therefore, the adjustable shoe l0Fi
, between the position of Figure 1 and the position of Figure 8, is moved inward to provide the necessary packing for proper conveyance of particulate solid material. The movement of the adjustable shoe 20 inwards and outwards to change the cross-sectional area t-p+u can be effected by means of a seed. As shown in FIG.
Also, a suitable Fi equivalent is a shoe 20'ft drive rotor 1
In a feature of the invention, the drive rotor 12 may adjustably move in conjunction with and away from the drive rotor 12! The amount of resistance or torque loading experienced by B is monitored by a suitable torque or rotation monitor 78. In operation, a meter servo switch 80 is provided which increases the torque load on the adjustable shoe 20t, which increases the frictional driving force between the rotor 12 and the solid material, and increases the forward force towards the outlet 18. Move inward until an increase in driving force occurs. The adjustable shoe 20 continues to move inward until the predetermined torque is reached and the solid material exhibits sufficient packing to provide maximum conveying efficiency.

Since the automatic adjustment system is designed such that the -H motor or engine torque load is exceeded or the drive rotor 18 is slow, the servo switch 80 limits the servo motor 76'ft adjustable shoe 20i and thereby Jitsu #
! The cross-sectional area of 22 is increased to allow solid materials to move more freely through pump 10. Although automatic self-defining systems of this kind have been proposed, the present invention does not, if desired.

Adjustable shoe 20 manually moved between fixed positions
You can also prepare.

Another embodiment of the present invention for continuous adjustment of the shaft 41C is shown in FIG. Hydraulic drive unit 92 includes a drive motor or engine 94 and a hydrostatic transmission or driver 96 . The hydrostatic transmission device 96 is of a conventional type in which a foot torque is applied to the shaft 42K due to varying the pressure of the hydraulic medium within the device 96.

For example, the pressure medium pressure is reduced in the hydrostatic transmission in order to maintain a constant torque on the shaft 42 when the rotor 12 is subjected to an increased pump load.

Conversely, if a lower load is applied to the rotor 18, the pressure medium pressure will increase to a higher level. As a feature of this embodiment, a fluid twin 98 is coupled between the hydrostatic transmission 96 and the hydraulic cylinder 100. A hydraulic cylinder drives piston 102 against adjustable shoe iIO. In this way, a constant pressure is exerted on the shoe 20. The amount of pressure changes according to the torque load that the rotor 11Kj receives.In detail, as the torque load on the rotor 12 increases, the pressure medium pressure once imparts a torque to the shaft 4B in the hydrostatic transmission. decreases like this @
At the same time, the pressure medium pressure within the cylinder 100 decreases proportionally t7. This reduces the forces acting on the solid material and makes pumping the solid material through the pump 10 easier. Conversely, solid substances that are easily pumped are pumped 10.
, the pressure in the hydrostatic transmission 96 increases, which in turn increases the pressure medium pressure in the cylinder 100, increasing the pressure acting on the adjustable shoe 20.

The pressure applied to the adjustable shoe 20 is self-compensating, as can be seen by selecting an appropriate fluid pressure using a solid pulp or the like.
1 ng), and can act continuously according to the load applied by the shaft 4g.

As shown in the previous embodiments, binding of particulate solid material occurs within the passage 22, but clogging can also be achieved by sloping the wall of the inlet 16 as it approaches the passage 2sK. As such, some sort of packing occurs, and this packing may be absolutely necessary for the proper conveyance of some solid substances.

As is clear from the above, this pump is an improvement on the conventional screw type feeder, and this feeder must continuously cut through the solid material Yr, and the solid material t screw blade #C must be fed through the feeder. According to the present invention, by sufficiently filling the particulate solid material, the surface area of the friction-driven wall can also transport the solid material in the opposite direction due to the frictional force of the friction-driven wall. This creates a force on the bulk of the particulate solid material that is applied only in the transport direction of the particulate solid material. 9
This increases the cross-section of the passage through which the solid material passes, which can be easily removed, since there is very little, if any, slippage between the wall and the solid material conveyed through the passage. The pump according to the invention can also be used as a meter for measuring the amount of solid material conveyed through the pump. Since the passage volume is known, conventional techniques, including gauging the drive rotor rotational speed, can then be easily used to determine the flow rate of solid material through the pump.

Although the embodiments of the present invention have been described above, the present invention is not limited thereto and can be modified or modified in many ways within the scope of the claims. For example, the drive rotor may be in the form of a drive wall. , this is not mandatory. There is a required padding and a ratio of driving wall mounds to opposing wall areas 9.
format or other systems can be used. Therefore, the invention is not limited to the specific embodiments described above.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of a solid pump of a homogeneous substance conveying device according to the present invention taken along the plane II in FIG. 2; Fig. 2 is a sectional view taken on the -1 plane of Fig. 1g1, and Fig. 8 is a partial view of the pump of the present invention showing the adjustment passage shoe that can be moved inward or to a high position of the blockage. FIG. 4 is a partial view showing the pump tt*n at a high position, similar to FIG. 2; 5 is a longitudinal sectional view taken along the plane V-V of FIG. 1; FIG. 6 is an enlarged perspective view of the drive rotor and adjustable passage shoes; and FIG. 0 10... Pump, 12... Friction drive rotor, 14... It is a figure showing other examples of the adjustable shoe.
...housing, 16-inlet, 18-outlet, 20-
... Adjustable shoe, 22... Passage, 24.-711 part, 26.28... Side wall, 80.82... Inner surface, No. 8... Outer surface, 38.40... Housing wall, 4B...
·shaft. 44...Arrow, 48.50.56...Book bearing,
52.54... Seal, 62.68% 64.65.66.6 Te, 68.69
...Wall, 70...Bolt or bottle, 72.One opposing wall. 74...1!21 rotation, shaft, 76...Electronic servo motor, 80...Servo switch, 92...-hydrostatic pressure drive 22, 94...Drive motor or engine, 96...
・Hydrostatic pressure transmission device, 98...Fluid line, 100...
・Hydraulic cylinder.

Claims (1)

[Claims] 1. A pump housing having a pump housing, an outlet, and a passageway communicating the inlet and the outlet, the passageway being movable with respect to the pump housing from the inlet to the outlet. ] and is formed on the wall opposite to this friction drive wall, and the friction drive wall has a surface area larger than the surface area of the opposing wall for contacting and transporting the solid substance. A solid material conveying device 0'I--A device according to claim 1k2, characterized in that the inlet has a through-jlf! Solid material conveying device 0 & device according to claim 1 or 8, characterized in that it has walls that slope along with the passageway for packing solid material prior to entering the device, wherein the opposite wall is frictionally driven. An apparatus for transporting solid materials, characterized in that it is adjustable to narrow the passageway relative to the wall and to fill the passageway with solid material. 4. In the device according to claim δ, the opposing wall is
A solid material conveying device, characterized in that it is adjustable by pivoting towards a drive wall adjacent to the outlet. A solid material conveying device characterized by being an adjustment wall. Apparatus according to any one of clauses 1.2.8.4.5, characterized in that the friction drive wall is a conveyor belt. 7. Apparatus according to any one of claims 1, g, 8.4, characterized in that the friction drive 11 is a drive rotor which can rotate in a pump housing. & Apparatus according to claim 7, characterized in that the drive rotor has a radially extending side wall above the drive o-po hub part forming a U-shaped channel. . 9. Apparatus according to claim 7, characterized in that the drive rotor is connected to a torque monitor, which torque monitor is connected to a servo motor for adjusting the opposing wall.