CN212328495U - Liquid nitrogen cylinder grinds breaker - Google Patents

Abstract

The utility model relates to a broken field of metal grinding particularly, relates to a liquid nitrogen cylinder grinds breaker. The liquid nitrogen roller grinding and crushing device comprises a roller body, a supporting frame, a liquid nitrogen tank, a supercharging device and a pressure detector; the roller body is rotatably arranged on the supporting frame, and the liquid nitrogen tank is communicated with the roller body through a communicating pipe; the liquid nitrogen tank is provided with a pressurizing device, and the pressurizing device is used for pressurizing the interior of the liquid nitrogen tank; the pressure detector is arranged in the roller body and is in signal connection with the supercharging device. The utility model discloses rotate the cylinder body and set up on the support frame, through thermodetector and supercharging device, realize that the liquid nitrogen tank lasts and supplies the liquid nitrogen for the cylinder body, realize that long-time efficient grinds the breakage.

Description

Liquid nitrogen cylinder grinds breaker

Technical Field

The utility model relates to a broken field of metal grinding particularly, relates to a liquid nitrogen cylinder grinds breaker.

Background

The biological material is easy to deteriorate and degrade when being ground at normal temperature, the biological activity and the structural integrity of the biological material cannot be guaranteed, and the temperature of-100 ℃ or even lower is generally required. The rigidity of the plastic can be reduced at low temperature, so that the material is harder and more brittle and is easier to crush, and the crushing difficulty is reduced. When the temperature of part of metal materials is lower than the critical transition temperature of toughness and brittleness, the impact absorption work is obviously reduced, the materials are changed from a toughness state to a brittleness state, and the low-temperature cold brittleness performance of the metal based on the body-centered cubic is obvious. Local high temperature is easy to generate in the metal material grinding and crushing process, the metal material is easy to be heated and oxidized, and the superfine powder material is easy to agglomerate at high temperature and is difficult to further crush and refine. The metal material is ground and crushed at low temperature in the protective atmosphere to be in an ideal mechanical crushing state, the temperature of liquid nitrogen is-196 ℃, gasified nitrogen does not pollute air, and liquid phase covering can protect the material.

The number of samples processed by a common liquid nitrogen grinding bowl or grinding box is small, and the continuous work cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid nitrogen cylinder grinds breaker, it can realize through pressure detector and supercharging device that the liquid nitrogen jar lasts for cylinder body supplies the liquid nitrogen, realizes that long-time efficient grinds the breakage.

The technical scheme of the utility model is realized like this:

the embodiment of the utility model provides a liquid nitrogen roller grinding and crushing device, which comprises a roller body, a support frame, a liquid nitrogen tank, a supercharging device and a pressure detector;

the roller body is rotatably arranged on the supporting frame, and the liquid nitrogen tank is communicated with the roller body through a communicating pipe; the liquid nitrogen tank is provided with a pressurizing device, and the pressurizing device is used for pressurizing the interior of the liquid nitrogen tank; the pressure detector is arranged in the roller body and is in signal connection with the supercharging device.

In an alternative embodiment, the pressure intensifying apparatus comprises a controller and a gas pressure intensifier; the controller is respectively in signal connection with the gas booster and the pressure detector, and the gas booster is communicated with the liquid nitrogen tank.

In an alternative embodiment, the gas supercharger is provided with an electromagnetic valve, and the electromagnetic valve is used for controlling the working state of the gas supercharger; the controller is in signal connection with the electromagnetic valve and is used for controlling the working state of the electromagnetic valve.

In an optional embodiment, a first pressure gauge is disposed on the roller body and used for detecting the pressure in the roller body.

In an optional embodiment, a second pressure gauge is disposed on the liquid nitrogen tank and is used for detecting the pressure in the liquid nitrogen tank.

In an optional embodiment, a one-way valve is arranged on the communicating pipe, and the one-way valve is used for enabling liquid nitrogen to enter the roller body only from the liquid nitrogen tank.

In an optional embodiment, the communicating pipe is provided with a flow control valve for controlling a flow rate of the liquid nitrogen in the liquid nitrogen tank flowing into the drum body.

In an alternative embodiment, the cylinder body comprises an inner layer and an outer layer, with a filler layer disposed between the inner layer and the outer layer.

In an alternative embodiment, the filler material within the filler layer is expanded perlite.

In an alternative embodiment, the support frame comprises a first support, a second support, a first support shaft and a second support shaft;

the first support shaft is arranged on the first support, the second support shaft is arranged on the second support, and the first support shaft and the second support shaft are respectively coaxially arranged at two opposite ends of the roller body; the first supporting shaft and the second supporting shaft are used for enabling the roller body to be rotatably arranged on the first support and the second support.

The utility model discloses technical scheme's beneficial effect is:

rotate the setting with the cylinder body on the support frame, through pressure detector and supercharging device, realize that the liquid nitrogen tank lasts and supplies the liquid nitrogen for the cylinder body, realizes that long-time efficient grinds the breakage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a liquid nitrogen roller grinding and crushing device provided by an embodiment of the present invention;

fig. 2 is a sectional view a-a of fig. 1.

Icon: 1: a drum body; 1-1: a first safety valve; 1-2: a first pressure gauge; 1-3: a discharge port; 1-4: an outer layer; 1-5: an inner layer; 1-6: a filling layer; 2: grinding balls; 3: powder; 4: a support frame; 5: a liquid nitrogen tank; 5-1: a second relief valve; 5-2: a second pressure gauge; 6: liquid nitrogen; 7: a gas booster; 8: an electromagnetic valve; 9: a controller; 10: a pressure detector; 11: a one-way valve; 12: a flow control valve; 13: and a liquid nitrogen injection port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to fig. 1 and 2. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The embodiment of the utility model provides a liquid nitrogen roller grinding and crushing device, which comprises a roller body 1, a support frame 4, a liquid nitrogen tank 5, a supercharging device and a pressure detector 10; the roller body 1 is rotatably arranged on the supporting frame 4, and the liquid nitrogen tank 5 is communicated with the roller body 1 through a communicating pipe; the liquid nitrogen tank 5 is provided with a supercharging device which is used for supercharging the interior of the liquid nitrogen tank 5; a pressure detector 10 is arranged in the roller body 1, and the pressure detector 10 is in signal connection with a supercharging device.

In this embodiment, the roller body 1 is provided with the discharge ports 1 to 3, the powder 3 to be ground and the grinding balls 2 for grinding are both put into the roller body 1 through the discharge ports 1 to 3, and the grinding balls 2 grind the powder 3 by the rotation of the roller body 1, thereby realizing the grinding and crushing of the powder 3.

When specifically using, put into cylinder body 1 back with powder 3 and grinding ball 2 earlier, rethread liquid nitrogen filling opening 13 pours into liquid nitrogen 6 into cylinder body 1 into, and the liquid nitrogen 6 of pouring into is no longer than cylinder body 1's volumetric third, treat cylinder body 1's constancy of temperature back, compress tightly the apron of discharge gate 1-3, start liquid nitrogen cylinder grinding breaker, open supercharging device simultaneously, along with cylinder body 1 rotates, grinding ball 2 is to 3 clashes into of material powder, the shearing, generate heat in the cylinder jar and evaporate partial liquid nitrogen 6, the pressure in the cylinder body 1 produces the change, pressure detector 10 in the cylinder body 1 detects pressure variation and feeds back pressure variation information to supercharging device, supercharging device passes through pressure calculation, start pressure boost work. In the gaseous entering liquid nitrogen container 5 of pressure boost, liquid nitrogen 6 in liquid nitrogen container 5 made through communicating pipe entering cylinder body 1 with this internal pressure differential of cylinder 5, liquid nitrogen 6 pours into back and replenishes volatilizing liquid nitrogen 6, keeps liquid level of liquid nitrogen 6 stable, can realize continuous ball-milling breakage.

Specifically, in this embodiment, the position on the drum body 1 connected to the communication pipe is a liquid nitrogen inlet 13.

In an alternative embodiment, the supercharging device comprises a controller 9 and a gas supercharger 7; the controller 9 is respectively in signal connection with the gas booster 7 and the pressure detector 10, and the gas booster 7 is communicated with the liquid nitrogen tank 5.

Specifically, the controller 9 is in signal connection with the pressure detector 10 and the gas booster 7, respectively. The controller 9 analyzes the pressure signal after receiving the pressure signal from the pressure detector 10, and when the pressure in the drum body 1 is smaller than the set pressure, the content of the liquid nitrogen 6 in the drum body 1 is reduced, and the liquid nitrogen 6 in the drum body 1 needs to be supplemented. At the moment, the controller 9 sends a starting signal to the gas booster 7, the gas booster 7 generates pressurized gas and inputs the gas into the liquid nitrogen tank 5, pressure in the liquid nitrogen tank 5 rises due to the input of the gas, and under the action of the pressure, the liquid nitrogen 6 in the liquid nitrogen tank 5 flows to the roller body 1 to supplement the liquid nitrogen 6 in the roller body 1, so that continuous supply of the liquid nitrogen 6 is formed, the liquid level stability of the liquid nitrogen 6 is kept, and sustainable ball milling crushing is realized.

Liquid nitrogen 6 supplements the back in to cylinder body 1, pressure detector 10 detects the pressure in the cylinder body 1 all the time, controller 9 receives pressure detector 10's pressure signal, carry out the analysis to pressure signal, after judging that the pressure in the cylinder body 1 rises to the set pressure, controller 9 sends the shut down signal to gas booster 7, gas booster 7 closes, no longer produce other, pressure in the liquid nitrogen tank 5 can be under the effect of pressure differential, continuously descend, avoid producing lasting high pressure in the liquid nitrogen tank 5.

In an alternative embodiment, the gas booster 7 is provided with an electromagnetic valve 8, and the electromagnetic valve 8 is used for controlling the working state of the gas booster 7; the controller 9 is in signal connection with the electromagnetic valve 8, and the controller 9 is used for controlling the working state of the electromagnetic valve 8.

Specifically, in this embodiment, through the setting of solenoid valve 8, can make the control of gas booster 7 comparatively accurate and sensitive, controller 9 control solenoid valve 8's the on-state, and then control gas booster 7's the open mode.

In an alternative embodiment, the cylinder body 1 is provided with a first pressure gauge 1-2 for detecting the pressure in the cylinder body 1.

In the embodiment, the first pressure gauge 1-2 is arranged outside the roller body 1, and the first pressure gauge 1-2 is connected with the inside of the roller body 1 and used for detecting the pressure inside the roller body 1 and displaying the pressure so that an operator can observe the pressure inside the roller body 1 at any time, and when an error or other problems occur in a system, the manual supplement operation can be performed on the liquid nitrogen roller grinding and crushing device.

In this embodiment, the first pressure gauge 1-2 is a pointer pressure gauge.

It should be noted that the first pressure gauge 1-2 may also be a digital pressure gauge, as long as it can display the pressure in the roller body 1.

In an alternative embodiment, the liquid nitrogen tank 5 is provided with a second pressure gauge 5-2 for detecting the pressure inside the liquid nitrogen tank 5.

In this embodiment, the second pressure gauge 5-2 is arranged outside the liquid nitrogen tank 5, and the second pressure gauge 5-2 is connected with the inside of the liquid nitrogen tank 5 and used for detecting the internal pressure of the liquid nitrogen tank 5 and displaying the internal pressure so that an operator can observe the pressure in the liquid nitrogen tank 5 at any time, and further can close the gas booster 7 in time when the pressure in the liquid nitrogen tank 5 is too high and can supplement the liquid nitrogen 6 in the liquid nitrogen tank 5 when the pressure in the liquid nitrogen tank 5 is too low.

Similarly, in this embodiment, the second pressure gauge 5-2 is a pointer pressure gauge, which may also be a digital pressure gauge as long as it can display the internal pressure of the liquid nitrogen tank 5.

In an alternative embodiment, the communicating pipe is provided with a one-way valve 11, and the one-way valve 11 is used for enabling the liquid nitrogen 6 to enter the roller body 1 only from the liquid nitrogen tank 5.

In this embodiment, the communicating pipe is provided with the check valve 11, and the check valve 11 enables the liquid nitrogen 6 to enter the roller body 1 only from the liquid nitrogen tank 5 but not from the roller body 1, so that normal grinding and crushing in the roller body 1 are ensured.

The check valve 11 is also called a check valve or a check valve, and is used for preventing the reverse flow of compressed air in a pneumatic system. The check valve 11 has two types of a straight-through type and a right-angle type, the straight-through type check valve 11 is installed on a pipeline through threaded connection, and the right-angle type check valve 11 has three types of threaded connection, plate type connection and flange connection.

In this embodiment, a straight-through check valve 11 is used.

In an alternative embodiment, a flow control valve 12 is disposed on the communicating pipe for controlling the flow rate of the liquid nitrogen 6 in the liquid nitrogen tank 5 flowing into the drum body 1.

The flow control valve 12 is a valve that controls the flow rate of the orifice by changing the size of the fluid resistance of the orifice under a certain pressure difference, thereby adjusting the movement speed of the actuator. The flow control valve 12 mainly includes a throttle valve, a speed regulating valve, an overflow throttle valve, a flow dividing and collecting valve, and the like. The flow control valve 12 is installed in a horizontal manner. The flow control valve 12 is connected in a flange type, a screw type, or a welded type. The control and regulation of the flow control valve 12 can be divided into automatic and manual.

In this embodiment, the flow control valve 12 is arranged, so that the liquid nitrogen 6 in the liquid nitrogen tank 5 can flow into the roller body 1 under the action of the pressure difference, but the flow rate cannot be increased along with the increase of the pressure difference, the pressure in the roller body 1 is ensured to be constant, and the long-time efficient grinding and crushing are further realized.

In an alternative embodiment, the cylinder body 1 comprises inner layers 1-5 and outer layers 1-4, with filling layers 1-6 disposed between the inner and outer layers 1-5 and 1-4.

In the embodiment, the roller body 1 is a double layer, and the filling layers 1-6 are arranged between the inner layers 1-5 and the outer layers 1-4, and the filling layers 1-6 are used for increasing the strength of the roller body 1.

After the filling layers 1 to 6 are filled with the filler, vacuum is applied so that the drum body 1 can be kept insulated.

In this embodiment, the inner layer 1-5 and the outer layer 1-4 are made of stainless steel.

In an alternative embodiment, the filler material in the filler layers 1-6 is expanded perlite.

It should be noted that the filling material may be expanded perlite, or it may be another filling material, as long as it can increase the strength of the roller body 1.

In an alternative embodiment, the support frame 4 comprises a first seat, a second seat, a first support shaft and a second support shaft; the first support shaft is arranged on the first support, the second support shaft is arranged on the second support, and the first support shaft and the second support shaft are respectively coaxially arranged at two opposite ends of the roller body 1; the first support shaft and the second support shaft are used for enabling the roller body 1 to be rotatably arranged on the first support and the second support.

In this embodiment, the supporting frame 4 is divided into a first supporting frame and a second supporting frame, which are respectively disposed at two ends of the roller body 1, wherein the first supporting frame includes a first supporting seat and a first supporting shaft, and the second supporting frame includes a second supporting seat and a second supporting shaft.

The first support shaft is rotatably arranged on the first support and is rotatably connected with one end of the roller body 1; meanwhile, the second supporting shaft is rotatably arranged on the second support, and the second supporting shaft is rotatably connected with the other end of the roller body 1.

In this embodiment, the both ends of first supporting shaft can be respectively with first support and cylinder body 1 rotate to be connected, also can be that one end rotates to be connected, other end fixed connection as long as can realize through first supporting shaft that the rotation between cylinder body 1 and the first support is connected can.

In a similar way, the two ends of the second supporting shaft can be respectively connected with the second support and the roller body 1 in a rotating manner, one end of the second supporting shaft can also be connected in a rotating manner, the other end of the second supporting shaft is fixedly connected with the second support, and the second supporting shaft can be connected with the roller body in a rotating manner only when the roller body is different from the second support.

Can find out by the aforesaid, the utility model discloses a pressure differential control liquid nitrogen 6's flow, and then guarantee the relative invariant of liquid nitrogen 6 positions in the cylinder body 1, further guaranteed that 3 materials of powder are covered the low temperature protection by liquid nitrogen 6, carry out continuous broken grinding.

The utility model discloses in, calculate liquid nitrogen 6 volatile volume through monitoring 1 internal pressure changes of cylinder body, calculated from this and supplemented the 6 flows of liquid nitrogen.

Liquid nitrogen 6 in the liquid nitrogen tank 5 is pressed into the roller body 1 through the gas supercharging device, wherein the liquid nitrogen 6 flows into and controls the flow velocity through the flow control valve 12, the flow velocity of the liquid nitrogen 6 is guaranteed to be stable, and the liquid supplement amount is accurate and constant.

Through controller 9, flow control valve 12 with the slew velocity of cylinder body 1, pressure differential, the pressure in the cylinder body 1 match the design, wherein heat and the gas volatile volume that produces in the cylinder body 1 are certain relation with liquid nitrogen 6 input, guarantee the pressure stability in the cylinder body 1, the rotational speed is invariable, has realized that long-time high-efficient grinding is broken.

Rotate cylinder body 1 and set up on support frame 4, through pressure detector 10 and supercharging device, realize that liquid nitrogen tank 5 continuously supplies liquid nitrogen 6 for cylinder body 1, realizes that long-time efficient grinds the breakage.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The liquid nitrogen roller grinding and crushing device is characterized by comprising a roller body, a supporting frame, a liquid nitrogen tank, a supercharging device and a pressure detector;

the roller body is rotatably arranged on the supporting frame, and the liquid nitrogen tank is communicated with the roller body through a communicating pipe; the liquid nitrogen tank is provided with a pressurizing device, and the pressurizing device is used for pressurizing the interior of the liquid nitrogen tank; the pressure detector is arranged in the roller body and is in signal connection with the supercharging device.

2. The liquid nitrogen roller grinding and crushing device of claim 1, wherein the pressurizing device comprises a controller and a gas pressurizer; the controller is respectively in signal connection with the gas booster and the pressure detector, and the gas booster is communicated with the liquid nitrogen tank.

3. The liquid nitrogen roller grinding and crushing device according to claim 2, wherein the gas booster is provided with an electromagnetic valve, and the electromagnetic valve is used for controlling the working state of the gas booster; the controller is in signal connection with the electromagnetic valve and is used for controlling the working state of the electromagnetic valve.

4. The liquid nitrogen roller grinding and crushing device according to claim 1, wherein a first pressure gauge is arranged on the roller body and used for detecting the pressure in the roller body.

5. The liquid nitrogen roller grinding and crushing device according to claim 1, wherein a second pressure gauge is arranged on the liquid nitrogen tank and used for detecting the pressure in the liquid nitrogen tank.

6. The liquid nitrogen roller grinding and crushing device as claimed in claim 1, wherein a one-way valve is arranged on the communicating pipe, and the one-way valve is used for enabling liquid nitrogen to enter the roller body only from the liquid nitrogen tank.

7. The liquid nitrogen roller grinding and crushing device according to claim 1, wherein a flow control valve is arranged on the communicating pipe and used for controlling the flow rate of liquid nitrogen in the liquid nitrogen tank flowing into the roller body.

8. The liquid nitrogen roller grinding and crushing device of claim 1, wherein the roller body comprises an inner layer and an outer layer, and a filling layer is arranged between the inner layer and the outer layer.

9. The liquid nitrogen roller grinding and crushing device of claim 8, wherein the filling material in the filling layer is expanded perlite.

10. The liquid nitrogen roller grinding and crushing device of claim 1, wherein the support frame comprises a first support, a second support, a first support shaft and a second support shaft;

the first support shaft is arranged on the first support, the second support shaft is arranged on the second support, and the first support shaft and the second support shaft are respectively coaxially arranged at two opposite ends of the roller body; the first supporting shaft and the second supporting shaft are used for enabling the roller body to be rotatably arranged on the first support and the second support.

Images