CN204019679U - For the forcing press by living beings production plate of material - Google Patents
For the forcing press by living beings production plate of material Download PDFInfo
- Publication number
- CN204019679U CN204019679U CN201420371626.9U CN201420371626U CN204019679U CN 204019679 U CN204019679 U CN 204019679U CN 201420371626 U CN201420371626 U CN 201420371626U CN 204019679 U CN204019679 U CN 204019679U
- Authority
- CN
- China
- Prior art keywords
- temperature
- heating plate
- forcing press
- conduction oil
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/007—Tempering units for temperature control of moulds or cores, e.g. comprising heat exchangers, controlled valves, temperature-controlled circuits for fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
- B30B15/064—Press plates with heating or cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
- B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Fats And Perfumes (AREA)
- Press Drives And Press Lines (AREA)
Abstract
For the forcing press by living beings production plate of material, this forcing press comprises with lower component :-at least one heating plate (4), and heating plate has the heat tunnel (5) for guiding conduction oil to pass through;-for conduction oil being transported to the secondary pumps (20) in the secondary loop (19) of heat tunnel (5);-at least one is for measuring front stream temperature (T
v) and reflux temperature (T
r) measurement mechanism (7,8);-for by front stream temperature (T
v) and reflux temperature (T
v) form temperature gap (Δ T) device;-for regulating the controller (14) of the rotating speed of secondary pumps (20) according to the temperature difference (Δ T) as regulated quantity.Obviously can reduce the rotating speed of secondary pumps in production run process when temperature difference Δ T remains constant, this is conducive to obviously reducing energy consumption and resultant energy expenditure.
Description
Technical field
The utility model relates to a kind of according to claim 1 as described in the preamble for the forcing press by living beings production plate of material.
Background technology
Use when manufactured materials plate by living beings, be such as the chip of wood, the raw mixture made of fiber and/or fragment, add adhesive and/or plastics more if necessary, this raw mixture scatters into pressed material pad by means of distribution station, and is pressed into plate of material in a press when using pressure and heat and hardens.For the quality of plate of material, temperature of heating plate T
hespecially conclusive effect is had, this temperature of heating plate T
hshould almost remain unchanged in a press.Heating plate rises to temperature of heating plate T by means of the fluid stream (this fluid stream flows through heating plate) of circulation
h, wherein, conduction oil or other suitable heat transfer medium can be used as fluid.At this, with initial temperature T
pconduction oil supplied by major loop, and be fed to heating plate by means of the secondary pumps in secondary loop by control valve.
By in file DE 10 2,004 019 429 A1 it is known that except temperature of heating plate T
h, conduction oil flows temperature T before entering heating plate with it
valso determined.All the time initial temperature T is starkly lower than
pfront stream temperature T
vusually depend on multiple parameter, but also determined primarily of the form of material to be extruded, the adhesive used, extruding thickness, heating plate and its thickness and forcing press.Possible for the manufacture of in the example of particieboard, initial temperature T
pvalue be 290 DEG C and front stream temperature T
vvalue be 260 DEG C.
By the conduction oil Waermeableitung flowing through plate in pressing process, thus after leaving heating plate, conduction oil has lower temperature, i.e. reflux temperature T
r, and according to this reflux temperature of prior art T
rdo not determined.Front stream temperature T
vwith reflux temperature T
rbetween temperature difference correspondingly regulate according to heat reduction, but equally also do not carry out the determination of temperature difference.
At mixing point place, major part has reflux temperature T
rconduction oil with there is the initial temperature T of major loop
pconduction oil mixing.Control valve is opened at this until reach target temperature value always, namely required front stream temperature T
v.In order to transmit conduction oil, use at this with the secondary pumps of constant rotational speed running.
When forcing press runs, following different duty can be distinguished at this:
Be quasi-stationary state in constant production run process.
When heat reduction diminishes, reflux temperature T
rraise.Therefore, must be mixed into the less conduction oil from major loop, control valve is close to closed condition thus.Secondary pumps continues to run with constant rotating speed at this, and under being in full load thus, this causes higher energy consumption.Thus, conduction oil volume flow remains unchanged in secondary loop.
When heat minimizing quantitative change is large, reflux temperature T
rreduce, and control valve is correspondingly opened, and has higher initial temperature T this is because must add from major loop
pmore conduction oils, to reach desired front stream temperature T
v.Secondary pumps is still run with constant rotating speed, and transmits identical conduction oil volume flow thus all the time.
When heated press, first the conduction oil in secondary loop and heating plate are cold.Therefore, conduction oil can have relatively high density and viscosity.This but means that secondary pumps then needs more multi-energy compared to when reaching the operating temperature of conduction oil in order to make conduction oil circulate.Thus, the power of the secondary pumps in secondary loop must design, this is because now power consumption is maximum to make cold conduction oil circulation all the time.
Utility model content
Therefore the purpose of this utility model is, so builds the forcing press for the manufacture of plate of material, that is, secondary pumps can be designed to less power and energy consumption reduces during operation.
Of the present utility model this realizes by means of forcing press according to claim 1 with other objects.Other preferred forms of implementation illustrate in the corresponding dependent claims.
As solution, give a kind of forcing press of the plate of material for the manufacture of being made up of living beings, wherein this forcing press comprises with lower component:
-at least one heating plate, this heating plate has the heat tunnel for guiding conduction oil to pass through;
-for conduction oil being transferred to the secondary pumps in the secondary loop of heat tunnel;
-at least one is for measuring front stream temperature T
vwith reflux temperature T
rmeasurement mechanism;
-for by front stream temperature T
vwith reflux temperature T
rform the device of temperature gap Δ T;
-for regulating the controller of the rotating speed of secondary pumps according to the temperature difference Δ T as regulated quantity.
In addition preferably, forcing press comprises heating plate and/or lower heating plate, and on this, heating plate and/or lower heating plate are heated by same secondary loop.
As another solution, give a kind of forcing press, this forcing press comprises heating plate and/or lower heating plate, and on this, heating plate and/or lower heating plate are by secondary loop heating separately.
Frequency converter is preferably set in addition for the rotating speed regulating secondary pumps.
Significant according to the advantage of forcing press of the present utility model: in production run process, obviously can reduce the rotating speed of secondary pumps when temperature difference Δ T remains constant, this is conducive to obviously reducing energy consumption and resultant energy cost.
If forcing press when heat exhaustion reduces, such as only consume a half-power, then according to prior art, produces the temperature difference of half when conduction oil volume flow keeps constant.But can reduce by half by means of according to the volume flow of adjustment of the present utility model by conduction oil.Reach significant power thus to save and the saving of resultant energy.Energy saving can reach to prior art institute energy requirement 85%.
The design of other favourable measures of the utility model and object draws by explanation hereafter by means of diagram.
Accompanying drawing explanation
The utility model is set forth further by means of diagram.Wherein be shown specifically following content:
Fig. 1 schematically shows a part for the forcing press of continuous firing with side view.
Fig. 2 indicates the background technology for the heating plate by fluid cut-in pressure machine.
Fig. 3 illustrates according to the block diagram for controlling fluid stream of the present utility model.
Detailed description of the invention
In FIG the forcing press shown in part comprise by roll steel band 1 that bar carries, with arrange the heating plate 4 for the fluid stream of temperature adjustment, the heat tunnel 5 of such as conduction oil wherein and for directly measure heating plate towards the insertion sensor 6 of temperature rolling that side of bar 2.In addition, the rolling plate 3 of sclerosis can be arranged on hot plate, roll bar 2 and roll on this rolling plate 3.
As seen from Figure 2 according to the connection of the fluid stream 15 of prior art.
Conduction oil 10 in the past out obtains initial temperature T in stream 10 in the only major loop 18 shown in part
p, this initial temperature T
pcan it be such as 290 DEG C.The conduction oil of major loop 18 is fed to secondary loop 19 by control valve 23.Major loop is such as by the energy supply of module thermoelectricity unit, and secondary loop 19 is then to one or more heating plates 4 energy supply of forcing press.Before conduction oil enters heating plate 4, temperature T will be flowed before measurement point 7 place determines it
v, this front stream temperature T
vshould it be such as 260 DEG C.Constant conduction oil volume flow drives in this secondary pumps 16 by constant rotational speed.Owing to reducing heat in heating plate 4, conduction oil has lower reflux temperature T after it leaves heating plate
r.Major part has reflux temperature T
rconduction oil be again fed to secondary loop 19 at mixing point 21 place.But also by valve 12, a part of conduction oil is fed in backflow 9 if desired.Temperature T is flowed before making
vkeep constant, conduction oil will be controlled be fed to secondary loop 19 at mixing point 21 place from major loop 18 by opening control valve 23.
For the situation needing cooling heating plate 4 fast, be provided with valve 13, the input of the cooling holder 11 of this valve 13 regulation and control containing cold conduction oil.Thus, heating plate also can to reach the temperature lower than 100 DEG C within a short period of time.
Fig. 3 illustrates according to the block diagram for controlling fluid stream of the present utility model.Conduction oil is fed to secondary loop 19 by front stream 10 by major loop 18.Major loop 18 comprises the measuring station 22 for measuring the volume flow being entered the conduction oil of secondary loop 19 (being undertaken by control valve 23) by major loop 18 in addition.Conduction oil is such as with initial temperature T
p=290 DEG C are left control valve 23.
At mixing point 21 place, the conduction oil from major loop 18 meets with the backflow from secondary loop 19.It is such as the reflux temperature T of 255 DEG C that backflow has
r, this reflux temperature T
rdetermined at measurement point 8 place and be transferred to controller 14 (dotted line).But should be understood that all temperature datas provided are only examples, also can be unlike this.
After mixing point 21, the mixture flowing into secondary loop 19 should have front stream temperature T
v=260 DEG C, this front stream temperature T
vmeasured at mixing point 7 place before conduction oil enters heating plate 4, and be transferred to controller 14 (dotted line) equally.
Importantly, secondary pumps 20 has speed variable.Flow temperature T before use
vwith reflux temperature T
rbetween temperature difference Δ T when, the rotating speed of secondary pumps 20 regulates (dotted line) to be adjusted to by controller 14 to make temperature difference Δ T keep constant.
Here the possibility of cooling fast can also be provided.
When forcing press enters idle running, now draw from heating plate 4 and seldom or not absorb energy, the rotating speed of secondary pumps 20 can reduce to minimum of a value by means of controller 14, to save energy.
Except front stream temperature T
vequally also can measure temperature of heating plate T
h.Only have when forcing press reaches default temperature of heating plate T
htime, such as before stream temperature T
vtime, just pressed material pad can be transported in forcing press to be pressed into.
When forcing press starts, first heating plate 4 absorbs many heats by conduction oil.Therefore particularly advantageously when forcing press starts, first secondary pumps 20 operates until reach default temperature of heating plate T with maximum speed
h.
Reference numerals list
| 1 | Steel band |
| 2 | Roll bar |
| 3 | Rolling plate |
| 4 | Heating plate |
| 5 | Heat tunnel |
| 6 | Insert sensor |
| 7 | Front stream temperature measuring point |
| 8 | Reflux temperature measurement point |
| 9 | Backflow |
| 10 | Front stream |
| 11 | Cooling holder |
| 12 | Valve |
| 13 | Valve before 11 |
| 14 | Controller |
| 15 | Direction of fluid flow |
| 16 | Secondary pumps |
| 18 | Major loop |
| 19 | Secondary loop |
| 20 | Secondary pumps (speed variable) |
| 21 | Mixing point |
| 22 | The measuring station of fluid stream |
| 23 | Control valve |
| T P | Initial temperature |
| T V | Front stream temperature |
| T R | Reflux temperature |
| T H | Temperature of heating plate |
Claims (4)
1., for the forcing press by living beings production plate of material, described forcing press comprises with lower component:
-at least one heating plate (4), described heating plate (4) has the heat tunnel (5) for guiding conduction oil to pass through;
-for conduction oil being transported to the secondary pumps (20) in the secondary loop (19) of described heat tunnel (5);
-at least one is for measuring front stream temperature (T
v) and reflux temperature (T
r) measurement mechanism (7,8);
-for by front stream temperature (T
v) and reflux temperature (T
v) form temperature gap (Δ T) device;
-for regulating the controller (14) of the rotating speed of described secondary pumps (20) according to the temperature difference (Δ T) as regulated quantity.
2. forcing press according to claim 1, is characterized in that, described forcing press comprises heating plate and/or lower heating plate (4), and described upper and lower heating plate (4) is heated by same secondary loop (19).
3. forcing press according to claim 1, is characterized in that, described forcing press comprises heating plate and/or lower heating plate (4), and described upper and lower heating plate (4) is by secondary loop (19) heating separately.
4. forcing press according to any one of claim 1 to 3, is characterized in that, is provided with frequency converter to regulate the rotating speed of described secondary pumps (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202013101969.0 | 2013-05-06 | ||
| DE201320101969 DE202013101969U1 (en) | 2013-05-06 | 2013-05-06 | Press for the production of biomass material panels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204019679U true CN204019679U (en) | 2014-12-17 |
Family
ID=51226500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371626.9U Expired - Fee Related CN204019679U (en) | 2013-05-06 | 2014-05-06 | For the forcing press by living beings production plate of material |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204019679U (en) |
| DE (1) | DE202013101969U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018001132A1 (en) * | 2018-02-12 | 2019-08-14 | Harburg-Freudenberger Maschinenbau Gmbh | Method and device for valve control |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004019429A1 (en) | 2004-04-19 | 2005-11-03 | Dieffenbacher Gmbh + Co. Kg | Method for rapid cooling of the heating plates of a continuously operating press and a continuously operating press |
-
2013
- 2013-05-06 DE DE201320101969 patent/DE202013101969U1/en not_active Expired - Lifetime
-
2014
- 2014-05-06 CN CN201420371626.9U patent/CN204019679U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE202013101969U1 (en) | 2014-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20190506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |