Defibrator capable of recycling steam

Abstract

The utility model relates to the technical field of defibrators, in particular to a defibrator capable of recycling steam. According to the technical scheme, the device comprises a feeder, a preheating tank, a cooking tank, a discharger, a pulping machine and a reflux pump, the input end of the feeder is connected to the lower surface of the preheating tank, the output end of the feeder is connected to the position, close to the upper surface, of the outer surface of the cooking tank, and a steam pipe is connected to the upper surface of the cooking tank; the position, close to the lower surface, of the outer surface of the cooking pot is connected with the input end of a discharger, the output end of the discharger is connected with the input end of a pulping machine, the upper surface and the lower surface of an output pipe of the pulping machine are connected with a separation barrel and a pulp outlet pipe respectively, the output end of a reflux pump is connected with a reflux pipe, and the tail end of the reflux pipe is connected to the upper surface of the preheating pot. And the output end of the reflux pump is connected with a filter. In the operation process of the defibrator, residual steam can be recycled and used for preheating wood, and energy conservation and environmental protection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal mills, in particular to a thermal mill with steam recyclable utilization. Background Art

[0002] A defibrillator is an important piece of equipment in the wood processing industry. Its working principle is to separate plant materials such as wood chips into fiber pulp under a certain temperature and pressure to meet the production needs of papermaking, fiberboard, particleboard, etc. In addition, a defibrillator also has significant product advantages, including high efficiency, low energy consumption, and easy operation. These features make it one of the indispensable equipment in the wood industry. By using this equipment, wood processing companies can improve production efficiency and reduce operating costs.

[0003] During the operation of the hot mill currently used for wood processing, the residual steam generated contains a lot of heat. Direct discharge will cause a large amount of heat energy waste, which is not conducive to energy conservation and environmental protection. Therefore, we propose a hot mill with steam recovery. Utility Model Content

[0004] The purpose of the utility model is to provide a steam-recoverable heat mill, which has the advantages of being able to recover the excess steam during the operation of the heat mill and use it for preheating wood, which is beneficial to energy conservation and environmental protection. It solves the problem that during the operation of the current heat mill used for wood processing, the excess steam generated contains a lot of heat, and direct discharge will cause a large amount of heat energy waste, which is not conducive to energy conservation and environmental protection.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steam-recyclable hot mill, comprising a feeder, a preheating tank, a cooking tank, a discharger, a refiner and a reflux pump, wherein the feeder input end is connected to the lower surface of the preheating tank, the feeder output end is connected to the outer surface of the cooking tank near the upper surface, the upper surface of the cooking tank is connected to a steam pipe, the outer surface of the cooking tank near the lower surface is connected to the discharger input end, the discharger output end is connected to the refiner input end, the upper and lower surfaces of the refiner output pipe are respectively connected to a separation cylinder and a pulp outlet pipe, the reflux pump output end is connected to a reflux pipe, and the end of the reflux pipe is connected to the upper surface of the preheating tank, the reflux pump output end is connected to a filter, and the end of the filter is connected to the outer surface of the separation cylinder near the upper surface.

[0006] Preferably, a feed valve is connected to the upper surface of the preheating tank.

[0007] Preferably, the outer surface of the steam pipe is connected to a diverter pipe, the end of the diverter pipe is connected to an annular pipe, and the cooking tank passes through the annular pipe. Several one-way valves are equidistantly connected to the outer surface of the cooking tank in an annular array near the lower surface, and the end of the one-way valve is connected to the outer surface of the annular pipe.

[0008] Preferably, a rotating shaft is installed on the top of the inner wall of the separation cylinder, and spiral blades are welded on the outer surface of the rotating shaft.

[0009] Preferably, a rotating motor is installed on the upper surface of the separation cylinder, and the end of the output shaft of the rotating motor is connected to the end of the rotating shaft.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The utility model is provided with a preheating tank, a feeder, a cooking tank, a discharger, a pulper, a separation cylinder, a reflux pump and a connecting pipe, so that during the operation of the hot mill, the residual steam can be recovered and used for preheating of the wood, which is beneficial to energy conservation and environmental protection. The feeder transports the wood in the preheating tank to the cooking tank, and the steam enters the cooking tank from the steam pipe and steams the wood to soften the wood. The softened wood is discharged into the pulper through the discharger, and the pulper separates the wood into fiber pulp and discharges it from the pulp discharge pipe. During the discharge of the wood pulp, the reflux pump works, and the residual steam enters the reflux pipe from the separation cylinder and is discharged into the preheating tank to preheat the wood inside the preheating tank.

[0012] 2. The utility model achieves the effect of separating the wood pulp in the recovered steam by arranging spiral blades, a rotating shaft and spiral blades. When the recovered steam containing a small amount of wood pulp enters the separation cylinder, it rotates and flows along the spiral blades, and the wood pulp and steam are separated under the action of centrifugal force. The wood pulp remains inside the separation cylinder, and when the rotating motor drives the spiral blades to rotate through the rotating shaft, the wood pulp remaining in the separation cylinder can be pushed into the pulp outlet pipe.

[0013] 3. The utility model achieves the effect of improving the uniformity of heating of the wood inside the cooking pot by providing a diverter pipe, an annular pipe and a one-way valve. Part of the steam inside the steam pipe is diverted to the inside of the diverter pipe and enters from the bottom of the cooking pot through the annular pipe and the one-way valve, so that the steam can be in uniform contact with the wood inside the cooking pot, thereby improving the uniformity of heating of the wood. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the partial main cross-sectional structure of the separation cylinder of the utility model;

[0017] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0018] Figure numerals: 1. feeder; 2. preheating tank; 3. feed valve; 4. reflux pipe; 5. steam pipe; 6. cooking tank; 7. diverter pipe; 8. annular pipe; 9. one-way valve; 10. separation cylinder; 11. filter; 12. pulp discharge pipe; 13. discharger; 14. pulper; 15. reflux pump; 16. spiral blade; 17. rotating shaft; 18. rotating motor. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figure 1 、 Figure 2 and Figure 4 As shown, the utility model proposes a steam-recyclable hot mill, which includes a feeder 1, a preheating tank 2, a cooking tank 6, a discharger 13, a pulping machine 14 and a reflux pump 15. The input end of the feeder 1 is connected to the lower surface of the preheating tank 2, and the upper surface of the preheating tank 2 is connected to a feed valve 3. The wood is put into the preheating tank 2 from the feed valve 3. The output end of the feeder 1 is connected to the outer surface of the cooking tank 6 near the upper surface. The feeder 1 transports the wood in the preheating tank 2 to the cooking tank 6. The upper surface of the cooking tank 6 is connected to a steam pipe 5. Steam is transported from the steam pipe 5 to the cooking tank 6 and steams the wood to soften the wood. The outer surface of the cooking tank 6 The position near the lower surface is connected to the input end of the discharger 13, and the output end of the discharger 13 is connected to the input end of the pulper 14. The discharger 13 unloads the wood cooked in the cooking tank 6 into the pulper 14. The upper and lower surfaces of the output pipe of the pulper 14 are respectively connected to the separation cylinder 10 and the pulp outlet pipe 12. The output end of the reflux pump 15 is connected to the reflux pipe 4, and the end of the reflux pipe 4 is connected to the upper surface of the preheating tank 2. The output end of the reflux pump 15 is connected to the filter 11, and the end of the filter 11 is connected to the outer surface of the separation cylinder 10 near the upper surface. The wood pulp remaining in the reflux steam is filtered out by the filter 11 to prevent the wood pulp from entering the reflux pump 15.

[0022] When the utility model is in use, the feeder 1 conveys the wood in the preheating tank 2 to the cooking tank 6, the steam enters the cooking tank 6 from the steam pipe 5, and cooks the wood to soften the wood, and the softened wood is discharged into the pulper 14 through the unloader 13, the pulper 14 separates the wood into fiber pulp, and discharges it from the pulp outlet pipe 12, and during the discharge of the wood pulp, the reflux pump 15 works, and the remaining steam enters the reflux pipe 4 from the separation cylinder 10 and is discharged into the preheating tank 2, so as to preheat the wood inside the preheating tank 2, which is beneficial to energy saving.

[0023] Example 2

[0024] like Figure 1 、 Figure 2 and Figure 4 As shown, the utility model proposes a steam-recoverable hot mill. Compared with the first embodiment, this embodiment also includes a diverter pipe 7 connected to the outer surface of the steam pipe 5, an annular pipe 8 connected to the end of the diverter pipe 7, and a cooking tank 6 passes through the annular pipe 8. A plurality of one-way valves 9 are equidistantly connected to the outer surface of the cooking tank 6 in an annular array near the lower surface, and the end of the one-way valve 9 is connected to the outer surface of the annular pipe 8.

[0025] In this embodiment, part of the steam inside the steam pipe 5 is diverted to the inside of the diversion pipe 7 and enters the bottom of the cooking tank 6 through the annular pipe 8 and the one-way valve 9, so that the steam can evenly contact the wood inside the cooking tank 6, thereby improving the uniformity of heating of the wood.

[0026] Example 3

[0027] like Figure 2 and Figure 3 As shown, the utility model proposes a steam recovery hot mill. Compared with the first embodiment, this embodiment also includes a rotating shaft 17 installed on the top of the inner wall of the separation cylinder 10, a spiral blade 16 is welded on the outer surface of the rotating shaft 17, and a rotating motor 18 is installed on the upper surface of the separation cylinder 10, and the end of the output shaft of the rotating motor 18 is connected to the end of the rotating shaft 17.

[0028] In this embodiment, when the recovered steam containing a small amount of wood pulp enters the separation drum 10, it spirally rotates and flows along the spiral blade 16, and the wood pulp and steam are separated under the action of centrifugal force, and the wood pulp remains inside the separation drum 10. When the rotating motor 18 drives the spiral blade 16 to rotate through the rotating shaft 17, the wood pulp remaining inside the separation drum 10 can be pushed into the pulp outlet pipe 12.

[0029] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A steam refining machine with recyclable steam, comprising a feeder (1), a preheating tank (2), a cooking tank (6), a discharger (13), a refiner (14) and a reflux pump (15), characterized in that: The input end of the feeder (1) is connected to the lower surface of the preheating tank (2), the output end of the feeder (1) is connected to the outer surface of the cooking tank (6) near the upper surface, the upper surface of the cooking tank (6) is connected to a steam pipe (5), the outer surface of the cooking tank (6) near the lower surface is connected to the input end of the discharger (13), the output end of the discharger (13) is connected to the input end of the pulping machine (14), the upper surface and the lower surface of the output pipe of the pulping machine (14) are respectively connected to the separation cylinder (10) and the pulp discharge pipe (12), the output end of the reflux pump (15) is connected to the reflux pipe (4), and the end of the reflux pipe (4) is connected to the upper surface of the preheating tank (2), the output end of the reflux pump (15) is connected to the filter (11), and the end of the filter (11) is connected to the outer surface of the separation cylinder (10) near the upper surface.

2. The steam recyclable refiner according to claim 1, characterized in that: The upper surface of the preheating tank (2) is connected to a feed valve (3).

3. The steam recyclable refiner according to claim 1, characterized in that: The outer surface of the steam pipe (5) is connected to a diverter pipe (7), the end of the diverter pipe (7) is connected to an annular pipe (8), and the cooking pot (6) passes through the annular pipe (8). The outer surface of the cooking pot (6) is equidistantly connected to a plurality of one-way valves (9) in an annular array near the lower surface, and the ends of the one-way valves (9) are connected to the outer surface of the annular pipe (8).

4. The steam recyclable refiner according to claim 1, characterized in that: A rotating shaft (17) is installed on the top of the inner wall of the separation cylinder (10), and spiral blades (16) are welded to the outer surface of the rotating shaft (17).

5. The steam reclaimer according to claim 4, characterized in that: A rotating motor (18) is installed on the upper surface of the separation cylinder (10), and the end of the output shaft of the rotating motor (18) is connected to the end of the rotating shaft (17).

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