Roller glue blender for shaving materials in pressed shaving board

Abstract

The invention relates to the field of equipment for pressing wood, and particularly discloses a roller glue blender for wood shaving materials in pressing of shaving boards. A plurality of compressed gas atomizing nozzles are arranged in parallel axial positions in the roller at intervals; the compressed gas atomizing nozzle comprises a central pipe, and a first feeding pipe head and a second feeding pipe head are arranged on the central pipe in a communicating manner; a nozzle part is arranged at the head end of the central pipe; the tail end of the central pipe, the first feeding pipe head and the second feeding pipe head are respectively connected to a compressed gas constant-pressure flow distributor I, a glue constant-pressure flow distributor II and a curing agent / paraffin emulsion constant-pressure flow distributor III through a pipeline a, a pipeline b and a pipeline c; in addition, the glue constant-pressure flow distributor II is connected to the compressed gas pipe A through f II; and the curing agent / paraffin emulsion constant-pressure flow distributor III is connected to a compressed gas pipe B through fIII. The glue applying device has the beneficial effects that the safety is high, the cost is low, and the glue applying effect is more uniform; and the position of the nozzle can be adjusted outside the roller, so that the spraying effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressed particleboard, oriented particleboard and veneer particleboard, in particular to a drum glue mixer used for particle materials in the pressed particleboard. Background Art

[0002] Before pressing particleboard (or pressing oriented particleboard, veneer particleboard), it is usually necessary to mix the particle material (the logs of different sizes and specifications are planed into small pieces), and then mix the glue (MDI / urea-formaldehyde glue) with the particle material. Since the glue is a high-viscosity material, if you want to achieve sufficient mixing and stirring, the current method is basically to spray the glue on the particle material.

[0003] At present, this type of equipment basically adopts the design ideas of Europe and the United States, that is, a centrifugal sprayer. The advantages of this design are: 1. The spray volume can be easily changed by adjusting the rotation speed of the centrifugal disk, thereby controlling the glue spraying on the wood shavings and effectively controlling the spraying effect; 2. Since the glue is a high-viscosity material, it will not clog and expand.

[0004] However, the above design idea is also accompanied by some defects: 1. This type of centrifugal atomizer has a rotation speed of 6000-15000r / min and needs to run 7600-8000 hours per year, resulting in a short service life and the need for regular replacement, which in turn causes the cost to soar; 2. Because it rotates at high speed and has a built-in power supply, and there is dust in the wood shavings, it is easy to cause fire or even explosion; 3. Moreover, after this type of atomizer is shut down after work, the atomizer will still drip glue, resulting in excess sticky material, which will affect the quality of the subsequent pressed board.

[0005] Therefore, based on the defects of the above-mentioned existing designs, our company was commissioned by customers to design a new drum glue mixer for wood shavings. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a drum glue mixer for particle materials in pressed particle boards, which solves the problems of high cost, low safety and inconvenient nozzle position adjustment.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] In a first aspect, a drum glue mixer for wood particle materials in pressed particleboard is disclosed, comprising a drum, a wall of which is provided with blades, and a compressed gas atomizing nozzle;

[0009] A rectangular beam tube is arranged parallel to the axial direction at the middle and upper part of the cylinder cavity of the drum, and a plurality of compressed gas atomizing nozzles are arranged at intervals on the rectangular beam tube;

[0010] The compressed gas atomizing nozzle comprises a central tube, on which a first feed pipe head and a second feed pipe head are connected;

[0011] The head end of the central tube is connected to the nozzle portion via a hose;

[0012] The tail end of the central tube, the first feed pipe head, and the second feed pipe head are connected to the corresponding compressed gas constant pressure flow distributor I, glue constant pressure flow distributor II, and curing agent / paraffin emulsion constant pressure flow distributor III through pipeline a, pipeline b, and pipeline c respectively;

[0013] In addition, the glue constant pressure flow distributor Ⅱ is connected to the compressed gas pipe A via fⅡ; the curing agent / paraffin emulsion constant pressure flow distributor Ⅲ is also connected to the compressed gas pipe B via fⅢ;

[0014] When atomization is in operation: a set amount of glue is injected into tube b through glue constant pressure flow distributor II, and the material in tube b is sprayed into the central tube through compressed gas pipe A; at the same time, a set amount of curing agent / paraffin emulsion constant pressure flow distributor III is injected into tube c, and injected into the central tube through compressed gas pipe B; finally, air is pressed into the central tube through pipeline a through compressed gas constant pressure flow distributor I, so that glue, curing agent / paraffin emulsion and air are sprayed out from the nozzle;

[0015] When the spray is working, the compressed gas atomizing nozzle has a long service life; accurate feeding is achieved through the constant pressure flow distributor of the corresponding material and the compressed gas constant pressure flow distributor; in addition, there is no charged control component in the entire drum to avoid causing the explosion of dust in the drum.

[0016] As the preferred technical solution of the present application, the glue constant pressure flow distributor II comprises a tank body, which is provided with a pressure gauge; the tank body has an inlet MⅡ, an inlet NⅡ, an outlet XⅡ, and multiple outlets YⅡ; the inlet MⅡ is connected to the glue mixing mixer via the pipeline jⅡ, and the pipeline is provided with a switch valve; the inlet NⅡ is also connected to the compressed gas pipe A through the branch pipe fⅡ, and the branch pipe fⅡ is provided with a switch valve; the outlet XⅡ is connected to the discharge pipe kⅡ, which is used to discharge the excess material remaining in the tank body; the multiple outlets YⅡ are respectively connected to the corresponding multiple pipelines gⅡ, and the pipeline gⅡ is provided with corresponding switch valves; the pipeline gⅡ and the pipeline b are both connected to the three-way valve II. In addition, the three-way valve II is also connected to the compressed gas pipe A via the pipeline dⅡ. When glue needs to be added to the compressed gas atomizing nozzle: pipeline jⅡ, glue constant pressure flow distributor Ⅱ, pipeline gⅡ, controllable three-way valve Ⅱ, pipeline b are connected; and pipeline kⅡ is closed, pipeline d is closed; then, pipeline fⅡ is opened to allow compressed gas to squeeze the material in the tank. After the glue is added: pipeline jⅡ is closed, pipeline kⅡ is opened, dⅡ is opened, pipeline fⅡ is opened, and the glue in the tank, the glue in pipeline gⅡ, and the glue in pipeline b are discharged.

[0017] As the preferred technical solution of the present application, the curing agent / paraffin emulsion constant pressure flow distributor III comprises a tank body, which is provided with a pressure gauge; the tank body has an inlet MⅢ, an inlet NⅢ, an outlet XⅢ, and multiple outlets YⅢ; the inlet MⅢ is connected to the glue mixing mixer via the pipeline jⅢ, and the pipeline is provided with a switch valve; the inlet NⅢ is connected to the compressed gas pipe B through the branch pipe fⅢ, and the branch pipe fⅢ is provided with a switch valve; the outlet XⅢ is connected to the discharge pipe kⅢ, which is used to discharge the excess material remaining in the tank body; the multiple outlets YⅢ are respectively connected to the corresponding multiple pipelines gⅢ, and the pipeline gⅢ is provided with corresponding switch valves; the pipeline gⅢ and the pipeline c are both connected to the three-way valve III. In addition, the three-way valve III is also connected to the compressed gas pipe A via the pipeline dⅢ. When it is necessary to add glue to the compressed gas atomizing nozzle: pipeline jⅢ, glue constant pressure flow distributor Ⅲ, pipeline gⅢ, controllable three-way valve Ⅲ, pipeline c are connected; and pipeline kⅢ is closed, pipeline d is closed; then, pipeline fⅢ is opened to allow compressed gas to squeeze the material in the tank. After the glue is added: pipeline jⅢ is closed, pipeline kⅢ is opened, pipeline dⅢ is opened, pipeline fⅢ is opened, and the glue in the tank, the glue in pipeline gⅢ, and the glue in pipeline c are discharged.

[0018] As a preferred technical solution of the present application, the compressed gas constant pressure flow distributor I comprises a tank body; the tank body has an inlet MⅠ, an outlet XⅠ, and multiple outlets YⅠ; the inlet MⅠ is connected to the air compressor via a pipeline jⅠ, and a switch valve is provided on the pipeline; the outlet XⅠ is connected to a discharge pipe kⅠ, which is used to discharge excess air pressure in the tank body; the multiple outlets YⅠ are respectively connected to corresponding multiple pipelines g, and the pipelines g are provided with corresponding pumps, one-way valves, and switch valves; the pipeline g is connected to the corresponding pipeline a.

[0019] As a preferred technical solution of the present application, the compressed gas is compressed nitrogen, so that the oxygen content in the drum glue mixer is less than 5%.

[0020] As a preferred technical solution of the present application, a triangular channel tube is arranged parallel to the axial direction at the middle and upper part of the cylinder cavity of the drum, a rectangular beam tube is arranged inside the triangular channel tube, and various pipelines are arranged on the side wall of the triangular channel tube (30). A plurality of notches are opened on the bottom wall of the triangular channel tube, and the nozzle part of the compressed gas atomizing nozzle on the rectangular beam tube extends downward from the notches.

[0021] In the second aspect, other designs are made based on the design of the roller glue mixer for particle materials in the above-mentioned pressed particle board. The bottom plate of the rectangular tube is provided with a long groove, so that the cross section of the rectangular block is in a C-shape with the opening facing downward; a vertical rod is fixed to the central tube of the compressed gas atomizing nozzle, and the vertical rod has a protrusion near the upper end; the upper end of the vertical rod is inserted into the rectangular tube through the long groove, and the protrusion is against the lower surface of the bottom plate of the rectangular tube. By putting a pressing block on the upper end of the vertical rod and tightening it with a nut, the pressing block is pressed on the upper surface of the bottom plate of the rectangular tube.

[0022] Furthermore, the following design can be adopted as required: the upper surface of the protrusion is provided with roller A, and the lower surface of the pressure plate is provided with roller B. When the protrusion and the pressure plate are pressed on the bottom plate of the rectangular tube, the corresponding rollers A and B are pressed against the bottom plate, forming a structure in which the compressed gas atomizing nozzle can be adjusted in parallel axial position. The length of the rod head of each compressed gas atomizing nozzle extending into the rectangular tube is different, and the rod head is fixed after being led out of the roller from both ends along the rectangular tube by two left and right thin ropes. By pulling the position of the thin rope left and right, the position of the compressed gas atomizing nozzle can be adjusted.

[0023] The present invention has the following advantages:

[0024] (1) It can increase the service life of the equipment and greatly reduce costs; and through the design of the pipeline, it can also achieve precise control of the spray volume;

[0025] In the field of wood chip presses, centrifugal atomizers are used in the rubber mixing drums, with a rotation speed of 6,000 to 15,000 r / min and a need to run 7,600 to 8,000 hours per year, resulting in a short service life and the need for regular replacement, which in turn causes a surge in costs;

[0026] In this solution, by setting a compressed gas atomizing nozzle, this nozzle will basically not be worn and can be used for a long time, thereby increasing the service life of the equipment and reducing the cost of equipment replacement; in addition, in this type of compressed gas atomizing nozzle, the most difficult thing to control is the precise amount of each component, so through the design of the pipeline, the spray amount of the atomizing nozzle can be accurately controlled, so as to achieve the same effect as the centrifugal atomizing nozzle; (some existing companies may have some technicians who would think of using air compression atomizing nozzles, but in actual experiments, it is difficult to accurately control the amount sprayed by each nozzle, resulting in poor final spray effect, so companies on the market have abandoned this design; in this solution, the material is introduced into the corresponding tank body, and then an air compression source is used for extrusion. Before extrusion, the air pressure in the tank body is adjusted, and the pressure in the tank body is consistent each time, so that the material squeezed out of each tube is consistent each time, and when extruded multiple times, the material squeezed out of each tube tends to be consistent, so that only a certain period of debugging is required to achieve the precise spray amount of the atomizing nozzle, thereby ensuring the spray effect)

[0027] (2) It can avoid dust explosion in the drum and improve safety;

[0028] In the field of particle board production, the centrifugal atomizer is used in the drum glue mixing drum. Because it rotates at high speed and has a built-in power supply, and the particle board is dusty, it is easy to cause fire or even explosion;

[0029] In this scheme, a compressed gas atomizing nozzle is used, and all pipes are led out of the drum. There are no electrical components in the drum, so it is impossible to explode due to ignition of dust;

[0030] (3) It can prevent the residual glue from dripping from the nozzle, thus preventing it from affecting the pressing effect of the subsequent wood shavings;

[0031] In the existing centrifugal atomizer, after the atomizer is stopped after work, the atomizer will still drip glue, resulting in excess adhesive material, thus affecting the quality of the subsequent pressed board;

[0032] The compressed gas atomizing nozzle used in this scheme uses compressed gas for spraying. Therefore, after the compression is completed and the machine is shut down, it is basically impossible for glue liquid to accumulate at the atomizing nozzle, so there will be no excess glue in the subsequent wood shavings.

[0033] (4) The position of the compressed gas atomizing nozzle can be adjusted by pulling a thin rope outside the drum. When the atomizing spray effect is not good, the position of the compressed gas atomizing nozzle can be adjusted to adjust the spraying effect.

[0034] (5) The nozzle is built into a diamond-shaped structure. This new structure has a smaller surface area than the cylindrical structure used in European and American drum rubber mixers, thereby minimizing the chance of wood shavings getting stuck or sticking to the outer wall, avoiding nozzle blockage and reducing downtime for cleaning and maintenance.

[0035] (6) The compressed gas used in this solution is compressed nitrogen, which keeps the oxygen content in the drum rubber mixer below 5%; avoiding dust explosion caused by static electricity generated by friction between wood shavings during the mixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 is a cross-sectional view of the drum;

[0038] Figure 3 This is a schematic diagram of the compressed gas atomizing nozzle and various pipelines;

[0039] Figure 4 This is the pipeline connection diagram of the compressed gas constant pressure flow distributor I;

[0040] Figure 5 This is the pipeline connection diagram of glue constant pressure flow distributor II;

[0041] Figure 6 The pipeline connection diagram of the curing agent / paraffin emulsion constant pressure flow distributor III;

[0042] Figure 7 It is a structural schematic diagram of a triangular channel tube;

[0043] Figure 8 It is a schematic diagram of the structure between the compressed gas atomizing nozzle and the rectangular tube;

[0044] Fig. 9 It is a schematic diagram of the structure of a compressed gas atomizing nozzle;

[0045] Fig.10 This is a photo of spray glue mixing;

[0046] Fig.11 This is a photo of the uniform spray after mixing the glue. DETAILED DESCRIPTION

[0047] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0048] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0050] (First aspect)

[0051] like Figure 1 , Figure 2 , Figure 7 , Fig. 9 As shown, the drum glue mixer for particleboard pressing includes a drum 10, a wall of the drum 10 is provided with blades, and also includes a compressed gas atomizing nozzle 20;

[0052] A triangular channel cylinder 30 is arranged parallel to the axial direction at the middle and upper part of the cylinder cavity of the drum 10, and a plurality of compressed gas atomizing nozzles 20 are arranged at intervals in the triangular channel cylinder 30 through a rectangular beam tube 40; a plurality of notches are opened at the bottom wall of the triangular channel cylinder 30, and the nozzles 24 of the compressed gas atomizing nozzles 20 leak downward from the notches;

[0053] The compressed gas atomizing nozzle 20 includes a central tube 21, and a first feed pipe head 22 and a second feed pipe head 23 are connected to the central tube 21;

[0054] The head end of the central tube 21 is connected to the nozzle portion 24 via a hose;

[0055] The tail end of the central tube 21, the first feed pipe head 22, and the second feed pipe head 23 are connected to the corresponding compressed gas constant pressure flow distributor I, glue constant pressure flow distributor II, and curing agent / paraffin emulsion constant pressure flow distributor III through pipeline a, pipeline b, and pipeline c respectively;

[0056] In addition, the glue constant pressure flow distributor Ⅱ is connected to the compressed gas pipe A via fⅡ; the curing agent / paraffin emulsion constant pressure flow distributor Ⅲ is also connected to the compressed gas pipe B via fⅢ;

[0057] When the atomization is in operation: a set amount of glue is injected into tube b through glue constant pressure flow distributor II, and the material in tube b is sprayed into the central tube 21 through compressed gas pipe A; at the same time, a set amount of curing agent / paraffin emulsion constant pressure flow distributor III is injected into tube c, and injected into the central tube 21 through compressed gas pipe B; finally, air is pressed into the central tube 21 through pipeline a through compressed gas constant pressure flow distributor I, so that glue, curing agent / paraffin emulsion and air are sprayed out from the nozzle;

[0058] When the spray is working, the compressed gas atomizing nozzle 20 has a long service life; accurate feeding is achieved through the constant pressure flow distributor of the corresponding material and the compressed gas constant pressure flow distributor; in addition, there is no charged control component in the entire drum 10 to avoid causing the explosion of dust in the drum 10.

[0059] See also Figure 5 , the glue constant pressure flow distributor II is further described below.

[0060] Specifically, the glue constant pressure flow distributor II includes a tank body, which is provided with a pressure gauge; the tank body has an inlet MⅡ, an inlet NⅡ, an outlet XⅡ, and multiple outlets YⅡ; the inlet MⅡ is connected to the glue mixing mixer via the pipeline jⅡ, and the pipeline is provided with a switch valve; the inlet NⅡ is also connected to the compressed gas pipe A through the branch pipe fⅡ, and the branch pipe fⅡ is provided with a switch valve; the outlet XⅡ is connected to the discharge pipe kⅡ, which is used to discharge the excess material remaining in the tank body; the multiple outlets YⅡ are respectively connected to the corresponding multiple pipelines gⅡ, and the pipeline gⅡ is provided with corresponding switch valves; the pipeline gⅡ and the pipeline b are both connected to the three-way valve II, and in addition, the three-way valve II is also connected to the compressed gas pipe A via the pipeline dⅡ. When glue needs to be added to the compressed gas atomizing nozzle 20: pipeline jⅡ, glue constant pressure flow distributor Ⅱ, pipeline gⅡ, controllable three-way valve Ⅱ, pipeline b are connected; and pipeline kⅡ is closed, pipeline d is closed; then, pipeline fⅡ is opened to allow compressed gas to squeeze the material in the tank. After the glue is added: pipeline jⅡ is closed, pipeline kⅡ is opened, pipeline dⅡ is opened, pipeline fⅡ is opened, and the glue in the tank, the glue in pipeline gⅡ, and the glue in pipeline b are discharged.

[0061] See also Figure 5 , the curing agent / paraffin emulsion constant pressure flow distributor III is further described below.

[0062] Specifically, the curing agent / paraffin emulsion constant pressure flow distributor III includes a tank body, which is provided with a pressure gauge; the tank body has an inlet MⅢ, an inlet NⅢ, an outlet XⅢ, and multiple outlets YⅢ; the inlet MⅢ is connected to the glue mixing mixer via the pipeline jⅢ, and the pipeline is provided with a switch valve; the inlet NⅢ is connected to the compressed gas pipe B through the branch pipe fⅢ, and the branch pipe fⅢ is provided with a switch valve; the outlet XⅢ is connected to the discharge pipe kⅢ, which is used to discharge the excess material remaining in the tank body; the multiple outlets YⅢ are respectively connected to the corresponding multiple pipelines gⅢ, and the pipeline gⅢ is provided with corresponding switch valves; the pipeline gⅢ and the pipeline c are both connected to the three-way valve III. In addition, the three-way valve III is also connected to the compressed gas pipe A via the pipeline dⅢ. When glue needs to be added to the compressed gas atomizing nozzle 20: pipeline jⅢ, glue constant pressure flow distributor Ⅲ, pipeline gⅢ, controllable three-way valve Ⅲ, pipeline c are connected; and pipeline kⅢ is closed, pipeline d is closed; then pipeline fⅢ is opened to allow compressed gas to squeeze the material in the tank. After the glue is added: pipeline jⅢ is closed, pipeline kⅢ is opened, pipeline dⅢ is opened, pipeline fⅢ is opened, and the glue in the tank, the glue in pipeline gⅢ, and the glue in pipeline c are discharged.

[0063] See also Figure 4 , the compressed gas constant pressure flow distributor I is further described below.

[0064] Specifically, the compressed gas constant pressure flow distributor I comprises a tank body; the tank body has an inlet MⅠ, an outlet XⅠ, and multiple outlets YⅠ; the inlet MⅠ is connected to the air compressor via a pipeline jⅠ, and a switch valve is provided on the pipeline; the outlet XⅠ is connected to the discharge pipe kⅠ, which is used to discharge excess air pressure in the tank body; the multiple outlets YⅠ are respectively connected to the corresponding multiple pipelines g, and the pipelines g are provided with corresponding pumps, one-way valves, and switch valves; the pipeline g is connected to the corresponding pipeline a.

[0065] It should be noted that the compressed gas referred to in this solution is compressed nitrogen, so that the oxygen content in the drum glue mixer is less than 5%; to avoid dust explosion caused by static electricity generated by friction between wood shavings during the mixing process.

[0066] (Second aspect)

[0067] Based on the structure of the first aspect, the following design is carried out.

[0068] See also Figure 8 and Fig. 9The bottom plate of the rectangular tube 40 is provided with a long groove, so that the cross section of the rectangular block 40 is in a C-shaped shape with the opening facing downward. A vertical rod is fixed on the central tube 21 in the compressed gas atomizing nozzle 20, and a protrusion is provided on the vertical rod near the upper end. During installation, the upper end of the vertical rod is extended into the rectangular tube 40 through the long groove, and the protrusion is against the eighth lower surface of the rectangular tube 40, and then a pressure plate is placed on the end of the vertical rod extending into the long groove, and then a nut is screwed on, so that the protrusion and the pressure plate are clamped on the bottom plate of the rectangular tube 40 for fixing.

[0069] According to needs, in this embodiment, the compressed gas atomizing nozzle 20 can also be designed as follows.

[0070] The pressing block has rollers A and B on the upper surface of the protrusion and the lower surface of the pressing block respectively. In addition, the lengths of the vertical rods on the compressed gas atomizing nozzles 20 extending into the rod heads of the rectangular tube 40 are different; a hole is opened at the uppermost end of the rod head, and two thin ropes are tied in the hole. The two thin ropes are respectively led out of the roller 40 from the left and right directions along the two ends of the rectangular tube 40 and fixed;

[0071] During installation: install the compressed gas atomizing nozzle 20 from one end of the rectangular tube 40, so that the vertical rod part between the protrusion and the pressing block is stuck in the long groove, and let the roller A and the roller B respectively rest on the upper surface and the lower surface of the bottom plate of the rectangular tube 40, and then screw the nut on the end of the vertical rod, and the nut is pressed on the pressing block, so as to achieve the fixed locking of the installation (in addition, since the compressed gas atomizing nozzle 20 will inevitably vibrate to a certain extent during atomization and spraying, the roller A and the roller B use rubber rollers with slight elasticity, and the nut should be tightened at the same time);

[0072] During operation: When it is observed that the spraying effect is not particularly ideal, the position of the compressed gas atomizing nozzle 20 can be adjusted by pulling the thin rope outside the drum (for example, when the corresponding nozzle needs to be adjusted to the left, loosen the thin rope on the right, pull the thin rope on the left to the left, and then fix the two thin ropes), and reduce the friction during adjustment through the corresponding rollers A and B (of course, there are many other ways to adjust the position of the compressed gas atomizing nozzle 20, but this method is very low cost. All methods of easily adjusting the position of the compressed gas atomizing nozzle 20 outside the drum are within the protection scope of this solution).

[0073] The following is a further description of the drum glue mixer used for the particle material in the pressed particle board in the first aspect and the second aspect.

[0074] In this embodiment, several compressed gas atomizing nozzles 20 near the right end of the drum 10 are actually connected to the paraffin emulsion constant pressure flow distributor III when connecting the pipelines, and the compressed gas atomizing nozzles 20 in the middle and left end of the drum 20 are actually connected to the curing agent constant pressure flow distributor III. When materials enter, the paraffin emulsion is sprayed first, and then the curing agent is sprayed.

[0075] It should be noted that when this solution is working:

[0076] The material is introduced into the corresponding tank, and then an air compression source is used for extrusion. The air pressure in the tank is adjusted before extrusion. The pressure in the tank is consistent each time. In this way, the materials squeezed out of each tube are consistent each time. After multiple extrusions, the materials squeezed in each tube tend to be consistent. In this way, the precise spray volume of the atomizing nozzle can be achieved through a certain period of debugging, thereby ensuring the spray effect;

[0077] In addition, by taking photos to observe the actual atomization effect, the compressed gas atomizing nozzle 20 can be easily adjusted in the left and right directions of the drum 10 by pulling the rope, avoiding the traditional form of disassembling the drum and then adjusting it, and the adjustment is convenient;

[0078] The specific spraying process is as follows: Fig.10 As shown, the specific spray uniformity effect is as follows Fig.11 Shown: It can be seen that the spray is very uniform.

[0079] The above embodiments only express preferred implementation modes, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A drum glue mixer for wood particle materials in pressed particleboard, comprising a drum (10), wherein blades are arranged on the wall of the drum (10), and characterized in that: Also included is a compressed gas atomizing nozzle (20); A rectangular beam tube (40) is arranged parallel to the axial direction at the middle and upper part of the cylinder cavity of the drum (10), and a plurality of compressed gas atomizing nozzles (20) are arranged at intervals on the rectangular beam tube (40); The compressed gas atomizing nozzle (20) comprises a central tube (21), and the central tube (21) is connected to a first feed pipe head (22) and a second feed pipe head (23); The head end of the central tube (21) is connected to the nozzle portion (24) via a hose; The tail end of the central tube (21), the first feed pipe head (22), and the second feed pipe head (23) are connected to the corresponding compressed gas constant pressure flow distributor I, glue constant pressure flow distributor II, and curing agent / paraffin emulsion constant pressure flow distributor III via pipeline a, pipeline b, and pipeline c respectively; In addition, the glue constant pressure flow distributor Ⅱ is connected to the compressed gas pipe A via fⅡ; the curing agent / paraffin emulsion constant pressure flow distributor Ⅲ is also connected to the compressed gas pipe B via fⅢ; When the atomization is in operation: a set amount of glue is injected into tube b through glue constant pressure flow distributor II, and the material in tube b is sprayed into the central tube (21) through compressed gas tube A; at the same time, a set amount of curing agent / paraffin emulsion constant pressure flow distributor III is injected into tube c, and injected into the central tube (21) through compressed gas tube B; finally, air is pressed into the central tube (21) through pipeline a through compressed gas constant pressure flow distributor I, so that glue, curing agent / paraffin emulsion and air are sprayed out from the nozzle; When the spray is working, the compressed gas atomizing nozzle (20) has a long service life; accurate feeding is achieved through the constant pressure flow distributor of the corresponding material and the compressed gas constant pressure flow distributor; in addition, the entire drum (10) does not have any charged control components, thereby avoiding the explosion of dust in the drum (10).

2. The drum glue mixer for particle materials in pressed particleboard according to claim 1, characterized in that: The glue constant pressure flow distributor II comprises a tank body, on which a pressure gauge is provided; the tank body has an inlet MⅡ, an inlet NⅡ, an outlet XⅡ, and multiple outlets YⅡ; The inlet MⅡ is connected to the glue mixing mixer via the pipeline jⅡ, and a switch valve is provided on the pipeline; The inlet NⅡ is also connected to the compressed gas pipe A through the branch pipe fⅡ, and a switch valve is provided on the branch pipe fⅡ; The outlet XII is connected to the discharge pipe kII and is used to discharge the excess material remaining in the tank; The plurality of outlets YⅡ are respectively connected to the corresponding plurality of pipelines gⅡ, and the pipelines gⅡ are provided with corresponding switch valves; The pipeline gⅡ and pipeline b are both connected to the three-way valve Ⅱ. In addition, the three-way valve Ⅱ is also connected to the compressed gas pipe A via the pipeline dⅡ. When it is necessary to add glue into the compressed gas atomizing nozzle (20), pipeline jⅡ, glue constant pressure flow distributor Ⅱ, pipeline gⅡ, controllable three-way valve Ⅱ, and pipeline b are connected; pipeline kⅡ and pipeline d are closed; then, pipeline fⅡ is opened to allow the compressed gas to squeeze the material in the tank; After the glue is added: pipeline jⅡ is closed, pipeline kⅡ is opened, pipeline dⅡ is opened, pipeline fⅡ is opened, and the glue in the tank body, the glue in pipeline gⅡ, and the glue in pipeline b are discharged.

3. The drum glue mixer for particle materials in pressed particleboard according to claim 2, characterized in that: The curing agent / paraffin emulsion constant pressure flow distributor III comprises a tank body, on which a pressure gauge is provided; the tank body has an inlet MⅢ, an inlet NⅢ, an outlet XⅢ, and multiple outlets YⅢ; The inlet MⅢ is connected to the glue mixing mixer via the pipeline jⅢ, and a switch valve is provided on the pipeline; The inlet NⅢ is connected to the compressed gas pipe B through the branch pipe fⅢ, and a switch valve is provided on the branch pipe fⅢ; The outlet XIII is connected to the discharge pipe kIII and is used to discharge the excess material remaining in the tank; The plurality of outlets YⅢ are respectively connected to the corresponding plurality of pipelines gⅢ, and the pipelines gⅢ are provided with corresponding switch valves; The pipeline gⅢ and pipeline c are both connected to the three-way valve Ⅲ. In addition, the three-way valve Ⅲ is also connected to the compressed gas pipe A via the pipeline dⅢ; When glue needs to be added into the compressed gas atomizing nozzle (20), pipeline jⅢ, glue constant pressure flow distributor Ⅲ, pipeline gⅢ, controllable three-way valve Ⅲ, and pipeline c are connected; pipeline kⅢ and pipeline d are closed; then, pipeline fⅢ is opened to allow the compressed gas to squeeze the material in the tank; After the glue is added: pipeline jⅢ is closed, pipeline kⅢ is opened, pipeline dⅢ is opened, pipeline fⅢ is opened, and the glue in the tank body, the glue in pipeline gⅢ, and the glue in pipeline c are discharged.

4. The drum glue mixer for particle materials in pressed particleboard according to claim 3, characterized in that: The compressed gas constant pressure flow distributor I comprises a tank body; the tank body has an inlet MⅠ, an outlet XⅠ, and a plurality of outlets YⅠ; The inlet MⅠ is connected to the air compressor via pipeline jⅠ, and a switch valve is provided on the pipeline; The outlet XⅠ is connected to the discharge pipe kⅠ, which is used to discharge the excess air pressure in the tank; The multiple outlets YⅠ are respectively connected to the corresponding multiple pipelines g, and the pipelines g are provided with corresponding pumps, one-way valves, and switch valves; the pipelines g are connected to the corresponding pipelines a.

5. The drum glue mixer for particle materials in pressed particleboard according to any one of claims 1 to 4, characterized in that: The compressed gas is compressed nitrogen, which makes the oxygen content in the drum glue mixer lower than 5%.

6. The drum glue mixer for particle materials in pressed particleboard according to any one of claims 1 to 4, characterized in that: A triangular channel cylinder (30) is arranged parallel to the axial direction at the middle and upper part of the cylinder cavity of the drum (10), and a rectangular beam tube (40) is arranged inside the triangular channel cylinder (30); Various pipelines are arranged on the side wall of the triangular channel tube (30), a plurality of slots are opened on the bottom wall of the triangular channel tube (30), and the nozzle part (24) of the compressed gas atomizing nozzle (20) on the rectangular beam tube (40) extends downward from the slots.

7. The drum glue mixer for particle materials in pressed particleboard according to any one of claims 1 to 5, characterized in that: The bottom plate of the rectangular tube (40) is provided with a long groove, so that the cross section of the rectangular block (40) is in a C-shape with the opening facing downwards; A vertical rod is fixed to the central tube (21) of the compressed gas atomizing nozzle (20), and the vertical rod has a protrusion near the upper end; the upper end of the vertical rod is inserted into the rectangular tube (40) through the long groove, and the protrusion is pressed against the lower surface of the bottom plate of the rectangular tube (40). By putting a pressure block on the upper end of the vertical rod and tightening it with a nut, the pressure block is pressed against the upper surface of the bottom plate of the rectangular tube (40).

8. The drum glue mixer for particle materials in pressed particleboard according to claim 6, characterized in that: The upper surface of the protrusion is provided with a roller A, and the lower surface of the pressure plate is provided with a roller B. When the protrusion and the pressure plate are pressed on the bottom plate of the rectangular tube (40), the corresponding rollers A and B abut against the bottom plate, forming a structure in which the compressed gas atomizing nozzle (20) can be adjusted in parallel to the axial position; The lengths of the rod heads of the vertical rods on the compressed gas atomizing nozzles (20) extending into the rectangular tube (40) are different. The rod heads are led out of the roller (40) along the two ends of the rectangular tube (40) by two left and right thin ropes and then fixed. The position of the compressed gas atomizing nozzle (20) can be adjusted by pulling the position of the thin ropes left and right.

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